x + y = 400
10x + 5y = 2750

Answers

Answer 1

Answer:

fart

Step-by-step explanation:

Answer 2
X = 150
Y = 250
150 + 250 = 400
10(150) + 5(250) = 2750
1500 + 1250 = 2750
X + Y = 40010x + 5y = 2750

Related Questions

In each of the following situations, explain what is wrong and why.
a. The null hypothesis H0: β3 = 0 in a multiple regression involving three explanatory variables implies there is no linear association between x3 and y.

Answers

The issue with the statement "The null hypothesis H0: β3 = 0 in a multiple regression involving three explanatory variables implies there is no linear association between x3 and y" is that the null hypothesis H0: β3 = 0 is testing whether there is a statistically significant linear relationship between the third explanatory variable (x3) and the dependent variable (y),

The null hypothesis H0: β3 = 0 in a multiple regression involving three explanatory variables implies that the coefficient of the third variable (x3) is zero, meaning that x3 has no effect on the dependent variable (y). However, this does not necessarily imply that there is no linear association between x3 and y.

In fact, there could still be a linear association between x3 and y, but the strength of that association may be too weak to be statistically significant.

Therefore, the null hypothesis H0: β3 = 0 should not be interpreted as a statement about the presence or absence of linear association between x3 and y. Instead, it only pertains to the specific regression coefficient of x3.

Know more about null hypothesis here:

https://brainly.com/question/4436370

#SPJ11

A researcher collated data on Americans’ leisure time activities. She found the mean number of hours spent watching television each weekday to be 2. 7 hours with a standard deviation of 0. 2 hours. Jonathan believes that his football team buddies watch less television than the average American. He gathered data from 40 football teammates and found the mean to be 2. 3. Which of the following are the correct null and alternate hypotheses? H0: Mu = 2. 7; Ha: Mu less-than 2. 7 H0: Mu not-equals 2. 7; Ha: Mu = 2. 3 H0: Mu = 2. 7; Ha: Mu not-equals 2. 7 H0: Mu = 2. 7; Ha: Mu greater-than-or-equal-to 2. 3.

Answers

The researcher collated data on Americans' leisure time activities. She found the mean number of hours spent watching television each weekday to be 2.7 hours with a standard deviation of 0.2 hours.

Jonathan believes that his football team buddies watch less television than the average American. He gathered data from 40 football teammates and found the mean to be 2.3. H0: μ = 2.7; Ha: μ < 2.7 is the correct null and alternative hypotheses.

What is a hypothesis?A hypothesis is a statement that can be tested to determine its validity. A null hypothesis and an alternate hypothesis are the two types of hypotheses. The null hypothesis is typically the statement that is believed to be correct or true. The alternate hypothesis is the statement that opposes the null hypothesis. Researchers use hypothesis tests to determine the likelihood of the null hypothesis being correct.

Know more about researcher collated data here:

https://brainly.com/question/31597598

#SPJ11

Find the coordinates of the points of intersection of the line
5x + 6y = 30 and the circle
x^2+ y^2 = 25. Round your answer to the nearest tenth.

Answers

The coordinates of the intersection of  the line and the circle are approximately (0, 5) and (4.9, -0.2), rounded to the nearest tenth.  

To find the coordinates of the point of intersection of a line and a circle, we must solve a system of equations formed by the equation of a line  and the equation of a circle.

First, we solve the linear equation 5x 6y = 30 for

y:  6 years = 30-5x

y = (30-5x)/6

Now we substitute this expression for y in the equation of the circle,

Expanding and simplifying the equation, we get:

Multiplying both sides by 36 to eliminate the denominator gives:

Calculating x, we get:

x(61x - 300) = 0

x = 0 or x = 300/61

If x = 0,  substituting the line into the equation  gives  y = 5, so one point of intersection  is (0, 5).  

If x = 300/61, replacing the row in the equation  gives  y = (30 - 5(300/61))/6, which simplifies to y = -10/61.

Therefore, the second intersection  is (300/61, -10/61). Thus, the coordinates of the point of intersection of the line and the circle are approximately (0, 5) and (4.9, -0.2), rounded to the nearest tenth.

For more question on coordinates visit:

https://brainly.com/question/31293074

#SPJ8

Divide:
78.84) 6575.256 how do you do this This is homework quick emergency

Answers

Answer:

Step-by-step explanation:

0.01199040767

this is the answer I don't know if this helps

1)Find f(23)?(4) for the Taylor series for f(x) centered at 4 iff(x) = \sum_{n=0}^{Infinity}(n+3)(x-4^n)/(n+1)!2)Find the Taylor series for f(x) centered at the given value of a. [Assume that f has a power series expansion. Do not show that Rn(x) ? 0.]f(x)=\frac{8}{x} a = -2

Answers

1. The Taylor series for f(x) centered at 4 if [tex]f(x) = \sum_{n=0}^{Infinity}(n+3)(x-4^n)/(n+1)!2)[/tex] is [tex]f(23.4) = \sum_{n=0}^{Infinity}(n+3)(23.4-4^n)/(n+1)![/tex]

2. The Taylor series for f(x) centered at the given value of a is f(x) = -4 + 2(x+2) - (2/3)(x+2)² + (4/3)(x+2)³ - ...

1.  To find the Taylor series for f(x) centered at 4, we need to first find the derivatives of f(x):

[tex]f(x) = \sum_{n=0}^{Infinity}(n+3)(x-4^n)/(n+1)!f'(x) = \sum_{n=1}^{Infinity}(n+2)(x-4^{n-1})/n!\\f''(x) = \sum_{n=2}^{Infinity}(n+1)(x-4^{n-2})/(n-1)!\\f'''(x) = \sum_{n=3}^{Infinity}(n)(x-4^{n-3})/(n-2)!\\[/tex]

and so on. Note that for all derivatives of f(x), the constant term is zero.

Now, to find f(23.4), we can substitute x = 23.4 into the Taylor series for f(x) centered at 4 and simplify:

[tex]f(x) = \sum_{n=0}^{Infinity}(n+3)(x-4^n)/(n+1)!\\f(23.4) = \sum_{n=0}^{Infinity}(n+3)(23.4-4^n)/(n+1)![/tex]

The series converges by the Ratio Test, so we can evaluate it numerically to find f(23.4).

2. To find the Taylor series for f(x) centered at a = -2, we can use the formula:

[tex]f(x) = \sum_{n=0}^{Infinity}f^{(n)}(a)/(n!)(x-a)^n[/tex]

where f^{(n)}(a) denotes the nth derivative of f(x) evaluated at a.

First, we find the derivatives of f(x):

f(x) = 8/x

f'(x) = -8/x²

f''(x) = 16/x³

f'''(x) = -48/x⁴

and so on. Note that all derivatives of f(x) have a factor of 8/x^n.

Next, we evaluate each derivative at a = -2:

f(-2) = -4

f'(-2) = 2

f''(-2) = -2/3

f'''(-2) = 4/3

and so on.

Finally, we substitute these values into the formula for the Taylor series to obtain:

f(x) = -4 + 2(x+2) - (2/3)(x+2)² + (4/3)(x+2)³ - ...

Note that the radius of convergence of this series is the distance from -2 to the nearest singularity of f(x), which is x = 0. Therefore, the radius of convergence is R = 2.

To know more about Taylor series here

brainly.com/question/29733106

#SPJ11

determine whether the series converges or diverges. [infinity] 8n 1 7n − 5 n = 1

Answers

The series Σ (from n = 1 to infinity) [(8n) / (7n - 5)] diverges.

The series provided is:
Σ (from n = 1 to infinity) [(8n) / (7n - 5)]

To determine its convergence or divergence, we can use the Limit Comparison Test. Let's compare it with the series 1/n:
a_n = (8n) / (7n - 5)
b_n = 1/n

Now, we find the limit as n approaches infinity:
lim (n → ∞) (a_n / b_n) = lim (n → ∞) [(8n) / (7n - 5)] / [1/n]

Simplify the expression:
lim (n → ∞) [(8n^2) / (7n - 5)] = lim (n → ∞) [8n / 7]

As n approaches infinity, the limit is 8/7, which is a positive finite number.

According to the Limit Comparison Test, since the limit is a positive finite number, the given series has the same convergence behavior as the series 1/n. The series 1/n is a harmonic series, which is known to diverge. Therefore, the given series also diverges.

To learn more about divergent series visit : https://brainly.com/question/15415793

#SPJ11

Please help i dont understand?

Answers

By using trigonometry, the length of n is,

⇒ n = 5.2

We have to given that;

A triangle is shown in image.

Now, We can formulate by using trigonometry;

⇒ tan 38° = n / 6.7 cm

⇒ 0.7812 = n / 6.7

⇒ n = 0.7812 × 6.7

⇒ n = 5.234

⇒ n = 5.2

Thus, By using trigonometry, the length of n is,

⇒ n = 5.2

Learn more about the triangle visit;

brainly.com/question/1058720

#SPJ1

The probability of Alex winning a game of chess with his high school classmates is 0.38, and the probability of his twin sister, Alice, winning a game of chess is 0.45 . Assuming that either one winning a game of chess with their classmates is independent of the other, what is the probability that at least one of them will win the next game of chess with their classmates? Note: If your final answer has up to four decimal places, enter your answer in the box below without rounding it. But if your final answer has more than four decimal places, then round the number to four decimal places.

Answers

Answer:

0.17

Step-by-step explanation:

0.38 + 0.45 = 0.83

100 - 83 = 17

1.00 - 0.83 = 0.17

probability is out of 100

The probability that at least one of them will win the next game of chess is 0.7645 or approximately 0.7645.

To find the probability that at least one of them will win the next game of chess, we need to find the probability that either Alex or Alice or both of them will win.

Let A be the event that Alex wins and B be the event that Alice wins. The probability of at least one of them winning is:

P(A or B) = P(A) + P(B) - P(A and B)

Since Alex and Alice are playing separately, we can assume that the events of Alex winning and Alice winning are independent of each other. Therefore, P(A and B) = P(A) * P(B)

Substituting the given probabilities, we get:

P(A or B) = 0.38 + 0.45 - (0.38 * 0.45)

= 0.7645

Therefore, the probability that at least one of them will win the next game of chess is 0.7645 or approximately 0.7645. This means that there is a high likelihood that at least one of them will win.

To know more about probability, refer here:

https://brainly.com/question/30034780#

#SPJ11

Dot plot 1 is the top plot. Dot plot 2 is the bottom plot.

According to the dot plots, which statement is true?

Responses

A. The mode of the data in dot plot 1 is less than the mode of the data in dot plot 2.


B. The range of the data in dot plot 1 is less than the range of the data in dot plot 2.


C. The median of the data in dot plot 1 is greater than the median of the data in dot plot 2.


D. The mean of the data in dot plot 1 is greater than the mean of the data in data plot 2.

Answers

Using the dot plot, it is found that the correct statement is given by:

The mode of the data in dot plot 1 is less than the mode of the data in dot plot 2.

We have,

The dot plot shows the number of times each measure appears in the data-set.

What is the mode of a data-set?

It is the value that appears the most in the data-set. Hence, using the mode concept along with the dot plot, it is found that:

The mode of dot plot 1 is 15.

The mode of dot plot 2 is 16.

Hence, the correct option is:

The mode of the data in dot plot 1 is less than the mode of the data in dot plot 2.

More can be learned about dot plots at

brainly.com/question/24912483

#SPJ1

y is a continuous uniform random variable with mean 3. the 80th percentile of y is 6. determine the second moment of y.

Answers

The second moment of Y is 3. The second moment of a continuous uniform random variable can be determined using the variance formula Var(Y) = (b - a)^2 / 12, where a and b are the lower and upper bounds of the uniform distribution.

Since we know the mean and the 80th percentile of Y, we can determine the bounds and calculate the second moment.

A continuous uniform random variable has a constant probability density function (PDF) over a given interval. In this case, we have a uniform distribution with a mean of 3. Let's denote this variable as Y.

The 80th percentile of Y is the value below which 80% of the data falls. In other words, it is the value y such that P(Y ≤ y) = 0.8. Since Y follows a continuous uniform distribution, the probability density function is a constant within a given interval.

To find the 80th percentile, we need to determine the upper bound of the interval. Let's denote it as b. The lower bound, denoted as a, can be determined from the symmetry of the distribution. Since the mean is 3, the midpoint of the distribution, a + (b - a) / 2, must be equal to 3. Therefore, a + (b - a) / 2 = 3, which simplifies to (b - a) / 2 = 3 - a.

From this equation, we can deduce that a = 3 - (b - a) / 2, which further simplifies to 2a = 6 - (b - a). Combining like terms, we get 3a = 6 - b, and since a + b = 6 (from the 80th percentile), we can substitute and solve for a: 3a = 6 - (6 - a), which gives us 3a = a. Therefore, a = 0.

Now we know the lower bound a = 0 and the upper bound b = 6. We can plug these values into the formula for the second moment of a continuous uniform random variable: Var(Y) = (b - a)^2 / 12. Substituting the values, we have Var(Y) = (6 - 0)^2 / 12 = 36 / 12 = 3.

Therefore, the second moment of Y is 3.

To learn more about variance, click here: brainly.com/question/27986822

#SPJ11

what are the magnitude and direction of the torque about the origin on a plum located at coordinates (-3 m,0 m, 7 m) due to force f whose only component is fx = 9 n?

Answers

The magnitude of the torque is 63 N·m, and its direction is along the positive y-axis.

The torque about the origin on a plum located at coordinates (-3 m, 0 m, 7 m) due to force F with component Fx = 9 N can be calculated using the torque formula:

Torque = r x F

Here, r represents the position vector (from origin to the plum), and F is the force vector. In this case, r = <-3, 0, 7> and F = <9, 0, 0>.

To find the torque, we need to compute the cross product of r and F:

Torque = <-3, 0, 7> x <9, 0, 0>

The cross product is given by:

Torque = <0(0) - 7(0), 7(9) - 0(0), -3(0) - 0(9)>
Torque = <0, 63, 0>

The magnitude of the torque is:

|Torque| = sqrt(0² + 63² + 0²) = 63 N·m

The direction of the torque is in the positive y-axis, as indicated by the non-zero component in the torque vector.

In summary, the magnitude of the torque is 63 N·m, and its direction is along the positive y-axis.

To know more about torque  click on below link :

https://brainly.com/question/31709810#

#SPJ11

Evaluate.
3^-3√8
a. -1/9
b. 91
c. -9
d. 1/9

Answers

The expression is evaluated to 1/9. Option D

How to determine the value

We need to know that index forms are described as mathematical forms used in the representation of number or variables that are too large or too small in more convenient forms.

Also, other names for these index forms are scientific notation and standard forms.

From the information given, we have that;

[tex]3^-^\sqrt[3]{8}[/tex]

Now, find the cube root of the exponent with value of 8, we have;

∛8 = 2

Substitute the value, we have;

3⁻²

Express as a fraction, we get;

1/3²

Find the square of the denominator

1/9

Learn more about index forms at: https://brainly.com/question/15361818

#SPJ1

A construction crew in lengthening a road. Let L be the total length of the road (in miles). Let D be the number of days the crew has worked. Suppose that L=2D+300 gives L as a function of D. The crew can work for at most 90 days

Answers

The given equation L = 2D + 300 represents the relationship between the total length of the road, L (in miles), and the number of days the crew has worked, D.

However, it's mentioned that the crew can work for at most 90 days. Therefore, we need to consider this restriction when determining the maximum possible length of the road.

Since D represents the number of days the crew has worked, it cannot exceed 90. We can substitute D = 90 into the equation to find the maximum length of the road:

L = 2D + 300

L = 2(90) + 300

L = 180 + 300

L = 480

Therefore, the maximum possible length of the road is 480 miles when the crew works for 90 days.

Learn more about equation here:

https://brainly.com/question/29538993

#SPJ11

suppose that f is a periodic function with period 100 where f(x) = -x2 100x - 1200 whenever 0 6 x 6 100.

Answers

Amplitude of f  -[tex]x^{2}[/tex]+100x - 1200 is 350.

To find the amplitude of a periodic function, we need to find the maximum and minimum values of the function over one period and then take half of their difference.

In this case, the function f(x) is given by:

f(x) = -[tex]x^{2}[/tex] + 100x - 1200, 0 ≤ x ≤ 100

To find the maximum and minimum values of f(x) over one period, we can use calculus by taking the derivative of f(x) and setting it equal to zero:

f'(x) = -2x + 100

-2x + 100 = 0

x = 50

So the maximum and minimum values of f(x) occur at x = 0, 50, and 100. We can evaluate f(x) at these values to find the maximum and minimum values:

f(0) = -[tex]0^{2}[/tex] + 100(0) - 1200 = -1200

f(50) = -[tex]50^{2}[/tex] + 100(50) - 1200 = -500

f(100) = -[tex]100^{2}[/tex] + 100(100) - 1200 = -1200

Therefore, the maximum value of f(x) over one period is -500 and the minimum value is -1200. The amplitude is half of the difference between these values:

Amplitude = (Max - Min)/2 = (-500 - (-1200))/2 = 350

Therefore, the amplitude of f(x) is 350.

Correct Question :

suppose that f is a periodic function with period 100 where f(x) = -[tex]x^{2}[/tex]+100x - 1200 whenever 0 ≤x≤100. what is amplitude of f.

To learn more about Amplitude here:

https://brainly.com/question/32041579

#SPJ4

.A random sample of 70 observations produced a mean of x=31.5x from a population with a normal distribution and a standard deviation σ=2.45
(a) Find a 95% confidence interval for μ
(b) Find a 99% confidence interval for μ
c) Find a 90% confidence interval for μ

Answers

(a) The 95% confidence interval for μ is (30.8, 32.2). (b) The 99% confidence interval for μ is (30.3, 32.7). (c) The 90% confidence interval for μ is (31.0, 32.0).

(a) To find a 95% confidence interval for μ, we can use the formula:

CI = x ± z(α/2) * σ/√n

Where:

x is the sample mean (31.5 in this case)

z(α/2) is the z-score corresponding to the desired confidence level (0.025 for a 95% confidence level)

σ is the population standard deviation (2.45 in this case)

n is the sample size (70 in this case)

Plugging in the numbers, we get:

CI = 31.5 ± 1.96 * 2.45/√70

CI = (30.8, 32.2)

So the 95% confidence interval for μ is (30.8, 32.2).

(b) To find a 99% confidence interval for μ, we can use the same formula but with a different z-score. For a 99% confidence level, z(α/2) is 0.005. Plugging in the numbers, we get:

CI = 31.5 ± 2.58 * 2.45/√70

CI = (30.3, 32.7)

So the 99% confidence interval for μ is (30.3, 32.7).

(c) To find a 90% confidence interval for μ, we can use the same formula but with a different z-score. For a 90% confidence level, z(α/2) is 0.05. Plugging in the numbers, we get:

CI = 31.5 ± 1.645 * 2.45/√70

CI = (31.0, 32.0)

So the 90% confidence interval for μ is (31.0, 32.0).

Learn more about Confidence interval:

https://brainly.com/question/15712887

#SPJ11

Solve this t(x, y, z) = 75 (1- z/105)^e^-(x^2 y^2 ).

Answers

The solved equation is:
t(x, y, z) = 75(1 - z/105)^e^-(x^2 y^2)

To solve the equation t(x, y, z) = 75(1 - z/105)^e^-(x^2 y^2), follow these steps:

Repeat the question in your answer.
You want to solve the equation t(x, y, z) = 75(1 - z/105)^e^-(x^2 y^2).

Identify the terms in the equation.
The terms in the equation are: t(x, y, z), 75, (1 - z/105), e, (x^2 y^2), and -.

Explain the equation.
The equation represents a mathematical function t(x, y, z) involving three variables (x, y, and z) and the constant e (Euler's number, approximately 2.71828).

Solve for t(x, y, z).
As the equation is already given in the form of t(x, y, z), there's no need to manipulate it further.

The solved equation is:
t(x, y, z) = 75(1 - z/105)^e^-(x^2 y^2)

This equation can be used to find the value of t(x, y, z) for any given values of x, y, and z.

To learn more about equations visit: https://brainly.com/question/2972832

#SPJ11

If X is an eigenvector for an nxn matrix A corresponding to the eigenvalue 3, then 2X is an eigenvector for A corresponding to the eigenvalue 6.
If the statement is true, provide a proof. If it is false, provide a counter-example.

Answers

The statement is true for any n × n matrix A and any eigenvector X corresponding to the eigenvalue 3.

Let A be an n × n matrix and let X be an eigenvector of A corresponding to the eigenvalue 3. That is, AX = 3X.

Now we want to show that 2X is an eigenvector of A corresponding to the eigenvalue 6. That is, A(2X) = 6(2X).

Using the distributive property of matrix multiplication, we have: A(2X) = 2(AX).

Substituting AX = 3X (from the first equation), we get: A(2X) = 2(3X).

Using the associative property of scalar multiplication, we have: A(2X) = 6X.

Comparing this to the second equation, we see that 2X is indeed an eigenvector of A corresponding to the eigenvalue 6.

Therefore, the statement is true for any n × n matrix A and any eigenvector X corresponding to the eigenvalue 3.

To know more about "Matrix" refer here:

https://brainly.com/question/31017647#

#SPJ11

The shortest side of a right triangle measures inches. One angle of the triangle measures . What is the length, in inches, of the hypotenuse of the triangle?


A. 6[tex]\sqrt{3}[/tex]

B.3

C.6

D6[tex]\sqrt{2}[/tex]

Answers

The length of the hypotenuse of the triangle is 6 inches, which is option D.

In order to find the hypotenuse of a right triangle, we use the Pythagorean theorem which is `a²+b²=c²`where `a` and `b` are the legs of the triangle and `c` is the hypotenuse. Here, the question mentions that the shortest side of the right triangle measures 3 inches and one angle of the triangle measures 60 degrees. Therefore, we need to find the length of the other leg and hypotenuse.The trigonometric ratios of a 60 degree angle are:

`sin 60 = √3/2`, `cos 60 = 1/2`, `tan 60 = √3`.

Now, we have the value of sin 60 which is `√3/2`. We can use it to find the other leg of the right triangle as follows:

Let `x` be the other leg.So, `sin 60° = opposite / hypotenuse => √3/2 = x / c`

Multiplying both sides by `c`, we get: `x = c(√3/2)`

Now, using the Pythagorean theorem, we can write:

`3² + (c(√3/2))² = c²`9 + 3/4 c² = c²

Multiplying both sides by 4 gives:

36 + 3c² = 4c²Simplifying: c² = 36 ⇒ c = 6

Thus, the length of the hypotenuse of the triangle is 6 inches, which is option D.

To know more about hypotenuse visit:

https://brainly.com/question/16893462

#SPJ11

Suppose vector u = LeftAngleBracket 1, StartRoot 3 EndRoot RightAngleBracket, |v| = 6, and the angle between the vectors is 120°. What is u · v? –8. 19 –6 6 8. 19.

Answers

The dot product is also known as the scalar product or inner product of two vectors. It is a binary operation that takes in two vectors and returns a scalar quantity. the value of u · v is -12. Hence, the correct answer is -12.

According to given information:

Given that u = ⟨1, √3⟩, |v| = 6, and the angle between the vectors is 120°,

we need to find the value of u · v.

To calculate the dot product, we can use the formula:

u · v = |u| |v| cos θ

where |u| is the magnitude of vector u,

|v| is the magnitude of vector v, and

θ is the angle between the vectors.

Let's plug in the values that we know into the formula:

[tex]|u| = \sqrt{(1^{2} + (\sqrt{3} )^{2}) }[/tex]

= 2cos 120°

= -1|v|

= 6u · v

= [tex]|u| |v| cos θ[/tex]

= (2)(6)(-1)

= -12

Therefore, the value of u · v is -12. Hence, the correct answer is -12.

To know more about scalar quantity visit:

https://brainly.com/question/30895553

#SPJ11

What is the shape of the cross - section

Answers

The cross section is a rectangle that is not a square. Hope this helps :D

if the accaleration of an object is given by dv/dt=v/7, find the position function s(t) if v(0)=1 and s(0)= 2

Answers

Step-by-step explanation:

Integrate with respect to 't'  the accel function to get the velocity function:

velocity =   v/7  t   + c1       when t = 0     this =1    so  c1 = 1

velocity =  v/7  t  +  1         integrate again to find position function

s =  v/14 t^2 + t + c2     when t = 0   this equals 2   so   c2 = 2

s = v/14  t^2  + t  + 2

( Let me know if this is incorrect and I will re-evaluate)

suppose we have 3 features in our task. if we apply polynomial regression with degree =3; how many features will be used in this model?

Answers

If we apply polynomial regression with degree =3 to a task with 3 features, a total of 20 features will be used in this model. This is because for each feature, we generate a polynomial combination with degree up to 3, resulting in a total of (3+3-1) choose 3 = 20 features.

If we apply polynomial regression with degree = 3 to a dataset with 3 features, then the resulting model will use a total of 20 features.

This is because polynomial regression with degree 3 involves creating new features by taking all possible combinations of the original features up to degree 3. In this case, we have 3 original features, so the number of new features created will be:

1 (constant term) + 3 (first-degree terms) + 32/2 (second-degree terms, since there are 3 features and we are taking combinations of 2) + 33*2/6 (third-degree terms, since there are 3 features and we are taking combinations of 3)

= 1 + 3 + 3 + 1 = 8 + 12 = 20

Therefore, the polynomial regression model with degree 3 applied to a dataset with 3 features will use 20 features in total.

To know more about polynomial regression refer here:

https://brainly.com/question/28490882

#SPJ11

A manufacturer of video game systems knows that 1 out of every 37 systems will be manufactured with some sort of erot
if the manufacturer tests 123 of these systems at random before they leave the factory what is the probability in terms of
percent chance that none of these systems are defective (round your answer to the nearest hundred)

Answers

The probability, rounded to the nearest hundred, is approximately 66.5%. This means that there is a 66.5% chance that none of the 123 tested video game systems will be defective.

The probability that a video game system will be manufactured with a defect is 1/37. Therefore, the probability that a system will not be defective is 1 - (1/37), which simplifies to 36/37.

To find the probability that none of the 123 tested systems are defective, we can multiply the probability of each individual system being non-defective together.

Probability of none of the systems being defective = (36/37) * (36/37) * ... * (36/37) [123 times]

Using this formula, we can calculate the probability.

Probability = (36/37)^123 ≈ 0.665

To convert this probability to a percentage, we multiply by 100.

Probability as a percent = 0.665 * 100 ≈ 66.5%.

For such more questions on Probability:

https://brainly.com/question/30390037

#SPJ11

1. The diameter of the base of a cylinder is 18 cm and its height is 2.5 times its base
radius. Find the volume of the cylinder.

Answers

Answer:

The radius of the base of the cylinder is half of its diameter, so the radius is:

r = 18 cm / 2 = 9 cm

The height of the cylinder is 2.5 times the radius:

h = 2.5r = 2.5(9 cm) = 22.5 cm

The volume of a cylinder is given by the formula:

V = πr^2h

Substituting the values we have found, we get:

V = π(9 cm)^2(22.5 cm)

V = π(81 cm^2)(22.5 cm)

V = 1822.5π cm^3

So the volume of the cylinder is approximately 5713.77 cubic centimeters, or 5713.77 cm^3.

Step-by-step explanation:

use the integral test to determine whether the series is convergent or divergent. [infinity] ∑ 14/n^10 n = 1

Answers

The integral ∫1 to infinity 14/x¹⁰ dx converges, the series ∑ 14/n¹⁰ converges by the integral test.

The integral test to determine whether the series is convergent or divergent.

The integral test states that if f(n) is a continuous, positive, and decreasing function on [1, infinity), and if the series ∑ f(n) is convergent, then the series ∑ a(n) is also convergent, where a(n) = f(n) for all n.

Let f(n) = 14/n¹⁰.

Then f(n) is continuous, positive, and decreasing on [1, infinity).

To apply the integral test, we need to evaluate the integral

∫1 to infinity 14/x¹⁰ dx.

Using the power rule of integration, we have

∫1 to infinity 14/x¹⁰ dx = [(-14/9)x⁻⁹] from 1 to infinity

= [-14/(9 ×(infinity)⁹)] - (-14/9)

= 14/9.

for similar questions on series

https://brainly.com/question/30087275

#SPJ11

The given series, Σ(14/n^10) from n = 1 to infinity, is convergent.

To determine the convergence of the series using the integral test, we compare it to the integral of the corresponding function. Let's integrate the function f(x) = 14/x^10:

∫(14/x^10) dx = -14/(9x^9)

Now, we evaluate the definite integral from 1 to infinity:

∫[1,∞] (14/x^10) dx = lim[a→∞] (-14/(9x^9)) - (-14/(9(1^9)))

                    = 14/9

The integral of the function converges to a finite value of 14/9. According to the integral test, if the integral of the corresponding function is convergent, then the series is also convergent. Therefore, the series Σ(14/n^10) from n = 1 to infinity is convergent. In conclusion, the given series is convergent.

To learn more about convergent click here

brainly.com/question/28202684

#SPJ11

let ˆβ1 be the ols estimator for β1 in simple linear regression. show e(ˆβ1) = β1, i.e.,ˆβ1 is unbiased for β1.

Answers

The Ordinary Least Squares (OLS) estimator, denoted as ˆβ1, for β1 in simple linear regression is unbiased. In other words, the expected value of the OLS estimator equals the true value of the parameter, β1.

In simple linear regression, we aim to estimate the relationship between a dependent variable and an independent variable. The OLS estimator, ˆβ1, is obtained by minimizing the sum of squared differences between the observed dependent variable and the predicted values based on the estimated slope coefficient, β1.

To show that the OLS estimator is unbiased, we need to demonstrate that its expected value equals the true value of the parameter. Mathematically, we need to prove that E(ˆβ1) = β1.

Under certain assumptions, such as the error term having a mean of zero and being uncorrelated with the independent variable, it can be shown that the OLS estimator is unbiased. This means that, on average, the estimated value of β1 will be equal to the true value of β1. The unbiasedness property is crucial in statistical inference as it allows us to make valid inferences about the population parameter based on the estimated coefficient.

Overall, the OLS estimator for β1 in simple linear regression, denoted as ˆβ1, is an unbiased estimator of the true parameter β1. This property holds under specific assumptions and is essential in statistical analysis for drawing accurate conclusions about the relationship between variables.

Learn more about squared here: https://brainly.com/question/14198272

#SPJ11

Does anyone know the answer?
Mathematics question:

A school dedicated 20% of the courtyard area for students to start a garden. The students want to know how much of the 950-square-foot space they will be able to use.​

Answers

The part of 950 foot² space the students can use is,

⇒ 190 foot²

Since,

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

Thus, that thing in number is

a x b / 100

Students can use 20% of 950-sq.foot.

Now, 20% of 950-sq.-foot is derived as:

= 20 x 950/100

= 190 foot²

Thus, the part of 950 foot² space the students can use is: 190 foot².

Learn more about percentage here:

brainly.com/question/11549320

#SPJ1

Find m of arc JA

See photo below

Answers

The measure of the arc angle JA is 76 degrees.

How to find arc angle?

The sum of angles in a cyclic quadrilateral is 360 degrees. The opposite angles in a cyclic quadrilateral is supplementary.

Therefore, Let's find the measure of arc angle JA.

26x + 1 = 1 / 2 (18x + 4 + 6 + 32x)

26x + 1 = 1 / 2 (50x + 10)

26x + 1 = 25x + 5

26x - 25x = 5 - 1

x = 4

Therefore,

arc angle JA = 18x + 4

arc angle JA = 18(4) + 4

arc angle JA =72 + 4

arc angle JA = 76 degrees.

learn more on arc angle here: https://brainly.com/question/30818451

#SPJ1

the two rectangles are similar. which is a correct proportion for corresponding sides?
A.12/8=x/8 B.12/4=x/8 C.12/4=x/20 D.4/12=x/8

Answers

The correct proportion for corresponding sides of the two similar rectangles is D. 4/12 = x/8.

To determine the correct proportion for corresponding sides, we need to compare the lengths of corresponding sides of the two rectangles. Let's denote the length of one side of the first rectangle as 12 units and the length of the corresponding side of the second rectangle as x units.

Option A states that 12/8 = x/8. However, this would imply that the length of the corresponding side in the second rectangle is equal to the length of the corresponding side in the first rectangle, which would mean the rectangles are congruent, not similar.

Option B suggests that 12/4 = x/8. By simplifying the equation, we get 3 = x/8, which implies that x = 24. This proportion does not hold since the length of the corresponding side should be less than 12 (the length of the corresponding side in the first rectangle).

Option C states that 12/4 = x/20. Simplifying this equation gives us 3 = x/20, which implies that x = 60. This proportion also does not hold since the length of the corresponding side should be less than 12 (the length of the corresponding side in the first rectangle).

Option D states that 4/12 = x/8. By simplifying the equation, we get 1/3 = x/8. This proportion holds, indicating that the length of the corresponding side in the second rectangle is one-third of the length of the corresponding side in the first rectangle. Therefore, the correct proportion for corresponding sides is D. 4/12 = x/8.

For more such questions on rectangles, click on:

https://brainly.com/question/2607596

#SPJ11

Submit the worksheet with your constructions to your teacher to be graded

Answers

However, to give you an idea of what you should include in the worksheet, I can tell you that it depends on the instructions that your teacher gave you. Here are some possible steps that you can follow:

Step 1: Follow the instructions provided by your teacher.If your teacher provided you with specific instructions on how to construct the worksheet, then follow them carefully.

This may include the format of the worksheet, the length of the responses, and the type of information that you need to include. Make sure to read the instructions carefully before you start constructing the worksheet.

Step 2: Include all necessary informationIn general, a worksheet should include all the relevant information that is needed to complete a task or to answer a question.

If you are constructing a worksheet for a math problem, for example, make sure to include all the necessary data and formulas that are needed to solve the problem.

If you are constructing a worksheet for a reading assignment, make sure to include all the necessary information about the text that you read.

Step 3: Check for accuracy and completeness Once you have finished constructing the worksheet, make sure to check it for accuracy and completeness.

This means checking that all the necessary information is included, and that there are no errors or omissions. Double-check your calculations and your spelling and grammar.

Step 4: Submit the worksheet to your teacherOnce you are satisfied with the accuracy and completeness of your worksheet, submit it to your teacher for grading.

Make sure to follow any specific submission instructions that your teacher has provided, such as the file format or the deadline for submission.

To know more about worksheet refer here : brainly.com/question/11892503

#SPJ11

Other Questions
Modern aircraft are designed in a way that, when all seats are occupied, the baggage compartment is full, and all fuel tanks are full, the aircraft is: Which has had the most significant effect on the rise of globalization?the containment of communismadvances in farmingcomputer technologymilitary alliances how many levels in the authorized to offer program Electric forces can be explained using fields that extend through space. We can think of these fields as surrounding any charged object. What is one advantage of thinking about the electric force as a field? There are 26 prize tickets in a bowl, labeled A to Z. What is the probability that a prize ticket with a vowel will be chosen, not replaced, and then another prize ticket with a vowel will be chosen? Does this represent an independent or dependent event? Explain. The vertices of a triangle are P (-6,1), Q(-2,5) and R (8,1) - what is the slope of the median of the triangle that passes through point R?What is the slope of the altitude of the triangle that passes through point Q? ?What is the equation of a parabola that has a vertical axis,passes through the point (-1, 3), and has its vertex at (3, 2)?X=y=y=X =16216++166x 4116 164116x2 641+16 16 16 4116 16 16+ arrange the word in complete sentence seal/by /a/ gigantic/ captured /fishermen /was There are several methods of gene editing, including ________, the most widely used method. Julie has 20 times as many bouncy ball as her brother her brother haves 4 balls how many does Julie have? in accordance with da pam 385-63 select the statement that best represents the requirements Why did Buddhism spread to other parts of Asia Read the passage from When Birds Get Flu and Cows Go Mad! by John DiConsiglio.Japan, for example, tests a sample from every cow that will be used for food. The meat is kept in refrigerators until the test comes back negative. Most European nations test about 70 percent of their cows.But in the U.S., only about 650,000 of the 35 million cattle slaughtered each year are tested.The author sets the tone with his use of word order statisticssignal wordspunctuation An ____________ consists of all the biotic and abiotic factors in an area and their interac Please find answers of 14 a, b, c and d A parking garage bases its prices on the number of hours that a vehicle parks in the garage.Graph of a piecewise function with one piece constant from 0 comma 2 to 2 comma 2 and another piece going from the point 2 comma 2 to 6 comma 10 and another piece going from 6 comma 10 through 7 comma 11 to the rightBased on the graph, what is the pricing scheme the parking garage uses for vehicles? The first two hours cost $2, between two hours and six hours cost $2 per hour, and all hours after that cost $1. The first two hours cost $2, between two and four hours cost $1 per hour, and all hours after that cost $0.50. The first two hours cost $1 per hour, between two hours and six hours cost $2 per hour, and all hours after that cost $1. The first two hours cost $1 per hour, between two hours and six hours cost $1 per hour, and all hours after that cost $0.50. Match each type of restriction with an example of its use Given this information, which reversion mutation in the gene would restore the normal function of the protein? From its origin at the ileocecal junction to its termination at the anus, the large intestine has an approximate length of ______ feet and a diameter of ______ inches. Can someone help me please