Dan went to a craft fair where he spent a total of 16.00 he spent 6.00 on admission and went to 8 tables he spent the same ammount of money (m) at each table the following number sentence can be used to find how much money he spent at each table

Answers

Answer 1

Dan spent 1.25 at each table.

The formula used to solve this problem is m = 16 - 6/8. The calculation is as follows: 16 is the total amount of money Dan spent, 6 is the admission fee, and 8 is the number of tables. The equation is set up to find the amount of money Dan spent at each table. Taking the total amount of money spent, 16, and subtracting the admission fee, 6, leaves us with 10. We then divide this amount, 10, by the number of tables, 8, to find the amount of money spent at each table, which is 1.25. Therefore, Dan spent 1.25 at each table.

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Related Questions

Midwives Researchers Sally Tracy and associates undertook a cross-sectional study looking at the method of delivery and cost of delivery for first-time “low risk” mothers under three delivery scenarios: (1) Caseload midwifery (2) Standard hospital care (3) Private obstetric care The results of the study revealed that 58.5% of all births with midwifery were vaginal deliveries compared with 48.2% of standard hospital births and 30.8% of private obstetric care. In addition, the costs of delivery from midwifery was $3903.78 compared with $5279.23 for standard hospital care and $5413.69 for private obstetric care. (a) Why is this a cross-sectional observational study? (b) Name the explanatory variable in the study. (c) Name the two response variables in the study and determine whether each is qualitative or quantitative.

Answers

Note that:
a) This is a cross-sectional observational study because the data was collected from a single point in time and the observations were made without any manipulation of the variables by the researchers.

b) The explanatory variable in the study is the method of delivery (Caseload midwifery, Standard hospital care, Private obstetric care).

c) The two response variables in the study are the rate of vaginal deliveries (58.5%, 48.2%, 30.8%) and the cost of delivery ($3903.78, $5279.23, $5413.69). The rate of vaginal deliveries is a qualitative variable as it is a categorization of the type of delivery, while the cost of delivery is a quantitative variable as it is a measure of the amount of money spent on delivery.

What is a cross-sectional observational study?

It is to be noted that a cross-sectional observational study is a type of study in which data is collected from a single point in time without any manipulation of variables by the researchers.

The data collected provides a snapshot of the variables at that point in time.

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How many 1/5 in cubes will it take to fill a prism that is 2 2/5 inches by 3 1/5 inches by 2 inches?

Answers

The number of 1/5 in a cube required to fill a prism which is 2 2/5 inches x 3 1/5 inches x 2 inches is,  2000 1/5 inch cubes

What is Volume?

In mathematics, Space occupied by three dimensional objects is called Volume. Basically it is a space within a closed region of every three dimensional object.

Given that,

The dimensions of a prism  2 2/5 inches by 3 1/5 inches by 2 inches

The volume of the prism = 2 2/5 inches x 3 1/5 inches x 2 inches

                                         = 16  inches³

To find the number of 1/5 inch cubes required to fill the prism,

we need to find the volume of one cube

and then divide the volume of the prism by the volume of one cube:

Volume of one cube = (1/5 inch)³

                                  = (1/5)³ inch³

                                  = 1/125 inch³

Volume of the prism / Volume of one cube = 16 / (1/125)

                                                                        = 16 x 125

                                                                        = 2000 cubes

So, it will take 2000, 1/5 inch cubes to fill the prism.

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How many fifths are there in 6 and 4/5?

Answers

Answer:

Step-by-step explanation:

0

Find three consecutive integers such that the sum of the first and twice the second is 56 minus three times the third.The smallest integer is __The middle integer is __The largest integer is __

Answers

The smallest integer is 10, the middle integer is 11, and the largest integer is 12.

What is the consecutive integers in algebra?

In algebra, consecutive integers are a sequence of numbers that follow each other in order, where each number is one more than the previous number.

Let's call the smallest integer "x". Then, the middle integer is "x + 1" and the largest integer is "x + 2".

Now, using the given information, we can set up an equation:

x + 2(x + 1) = 56 - 3(x + 2)

Expanding the equation and simplifying:

3x + 2 = 56 - 3x - 6

6x = 62

x = 10

So, the three consecutive integers are 10, 11, and 12.

Hence, The smallest integer is 10, the middle integer is 11, and the largest integer is 12.

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The deck of a bridge is suspended 205 feet above a river. If a pebble falls off the side of the bridge, the height, in feet, of the pebble above the water surface after t seconds is given by y = 205 − 16t2.
(a)
Find the average velocity (in ft/s) of the pebble for the time period beginning when t = 2 and lasting the following amount of time.
(i)
0.1 seconds
ft/s
(ii)
0.05 seconds
ft/s
(iii)
0.01 seconds
ft/s
(b)
Estimate the instantaneous velocity (in ft/s) of the pebble after 2 seconds.
ft/s

Answers

The required answers are

i) -65.6

ii) -64.8

iii) -64

iv) -64

Velocity

The pace at which an object's position changes in relation to a frame of reference and time is known as its velocity.

Since it is a vector quantity, the definition of velocity requires both magnitude (speed) and direction.

Its SI equivalent is the metre per second (ms-1). A body is considered to be accelerating if its velocity changes, either in magnitude or direction.

Now in the given question,

1. Average velocity

When t=2

i. [2, 2.1]

= y(2.1) - y(2) / 2.1 - 2

= 205 - 16(2.1)^2 - 205 + 16(2)^2 / 0.1

= 205 - 16*4.41 - 205 +16(4) / 0.1

= -70.56 +64 / 0.1

= -6.56 /0.1

= -65.6

ii. [2, 2.05]

= y(2.05) - y(4) / 4.05 - 4

= 205 - 16(2.05)^2 - 205 +16(2)^2 / 0.05

= 205 - 16*4.2025 - 205 + 16(4) / 0.05

= -3.24 / 0.05

= -64.8

iii. [2, 2.01]

= y(2.01) - y(2) / 2.01 - 2

= 205 - 16(2.01)^2 - 205 + 16(2)^2 / 0.01

= 205 - 16*4.0401 - 205 + 16(4) / 0.01

= -64.64 + 64 / 0.01

= -0.64 / 0.01

= -64

iv. Instantaneous velocity

y = 205 - 16t^2

dy/dx = -32t

Considering t = 2

Instantaneous velocity after 2 seconds = -32(2)

Instantaneous velocity after 2 seconds = -64

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Use synthetic division to find the result when 4x³ + 7x² - 4x - 4 is divided by
x + 1. If there is a remainder, express the result in the form q(x) + r(x)
b(x)

Answers

Solving the following expression (4x4-7x3+7x2-12x+15)/(x-1) yields the result -7x2 + 4 + 19/ in the form q(x)+r(x)/b(x) (x-1).

what is expression ?

It is permissible to multiply, divide, add, or subtract in mathematics. The following is how an expression is put together: Number, term, and mathematical operator Three components of a numerical method include numbers, variable, and processes (such as addition, subtraction, multiplication or division etc.) It is possible to oppose expressions and words. An expression, often known as an analytical form, is any mathematics statement that contains variables, values, and an arithmetic procedure between them. For instance, the word m in the balanced formula is separated from the terms 4m and 5 by that of the arithmetic symbol +, as is the term m in the expression 4m + 5.

given

Given expression  is (4x⁴-7x³+7x²-12x+15)/(x-1)

then dividing this

=4x⁴/x-1-7x³/x-1+7x²/x-1-12x/x-1+15/x-1

=4x³-3x²+4x-8+7/x-1  in form of  q(x)+r(x)/b(x)

= 4x⁴/x-1-7x³/x-1+7x²/x-1-12x/x-1+15/x-1

= -7x² + 4 + 19/(x-1)

Solving the following expression (4x4-7x3+7x2-12x+15)/(x-1) yields the result -7x2 + 4 + 19/ in the form q(x)+r(x)/b(x) (x-1).

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Packages move along a conveyor belt and are dumped into an ever growing pile. After t minutes, the pile grows at a rate of 2 + 8 t packages per hour. Define p(t) to equal the approximate number of packages in the pile after t minutes. If there are 13 packages in the pile when t = 0 minutes, how approximately how many packages are there in the pile after 30 minutes?

Answers

There are 15 packages in the pile after 30 minutes.

How to determine the number of packages

From the question, we have the following parameters that can be used in our computation:

Rate = 2 + 8t packages per hour

To find the number of packages after t minutes, we need to integrate the rate of growth of the pile over time.

We can use the formula:

p(t) = p(0) + ∫_0^t (2 + 8t) dt

where p(0) = 13 is the number of packages in the pile at t = 0.

Evaluate

P(t) = 13 + 2t + 4t^2

For t = 30 minutes, which is equal to 0.5 hours, we have:

P(30) = 13 + 2 * 0.5 + 4 * 0.5^2

P(30) = 15

So, approximately there are 15 packages in the pile after 30 minutes.

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Find a unit vector with positive first component that is orthogonal to the plane passing through the pointsP=(4,5,−7),Q=(13,14,2), andR=(13,14,8)

Answers

The unit vector with positive first component that is orthogonal to the plane passing through the points is 63i - 63j + 0k.

What is a unit vector?

A measurement that combines magnitude and direction is called a vector. A vector having magnitude 1 is referred to as a unit vector.

We are given three points P, Q and R.

The two vectors PQ and PR will lie on the plane through the three given points P(3, 0, 1), Q(4, -2, 1) & R(5, 3,-1).

The vector PQ = (9, 9, 9) and PR = (9, 9, 16) .

Therefore, the required vector is

N = PQ × PR

N = 63i - 63j + 0k

Hence, the unit vector with positive first component that is orthogonal to the plane passing through the points is 63i - 63j + 0k.

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Express f squared - 6f + 7 in completed square form.

Answers

The expression f^2 - 6f + 7 can be written in the completed square form as:

(f - 3)^2 + 4

To get to this form, you first need to isolate the f terms on one side of the equation and then add or subtract a constant to make the coefficient of the f^2 term equal to 1. In this case, you would subtract 3 from f and add 9 to both sides to get:

f^2 - 6f + 9 = (f - 3)^2

Finally, you subtract 4 from both sides to complete the square:

(f - 3)^2 + 4 = f^2 - 6f + 7

This form makes it easy to see that the expression is a perfect square trinomial with a constant term of 4, and that the equation has a minimum value of 4 when f = 3.

Solve for x
4|3x+5|-4=64

Answers

Answer:

x=4

Step-by-step explanation:

12x+20-4=64

12x+16=64

12x=64-64

12x=48

x=4

Find the volume of a sphere with radius 13. Use 3.14 for pi, round your answer to the nearest hundredth if necessary, and do not include units.​

Answers

the volume of a sphere:

V=[tex]\frac{4\pi r^3}{3} =\frac{4*3.14*13^3}{3}[/tex]≈9198.106

The expression of f(x)=10,000(1.15)^x represents the population of Nashville each year. If x% represents the growth rate for each year, what is the value of x?

Answers

So, the growth rate for each year, x%, can be calculated using the above formula if the population of Nashville for a specific year, f(x)= (ln(f(x) / 10,000) / ln(1.15)) * 100, is known.

What is expression?

An expression or mathematical expression is a finite collection of symbols that is well-formed according to context-dependent norms. In mathematics, an expression is a phrase that has at least two numbers or variables and at least one arithmetic operation. Addition, subtraction, multiplication, or division are all examples of math operations. An expression's structure is as follows: (Number/variable, Math Operator, Number/variable) is an expression.

Here,

The expression f(x)=10,000(1.15)^x represents the population of Nashville each year, where x is the number of years after a certain reference point. The growth rate for each year can be found by taking the natural logarithm of the factor (1.15) in the expression:

ln(1.15^x) = ln(f(x) / 10,000)

x ln(1.15) = ln(f(x) / 10,000)

x = ln(f(x) / 10,000) / ln(1.15)

The value of x represents the growth rate as a percentage, so we need to multiply it by 100 to get the percentage:

x = (ln(f(x) / 10,000) / ln(1.15)) * 100

So, the growth rate for each year, x%, can be calculated using the above formula if the population of Nashville for a specific year, f(x)= (ln(f(x) / 10,000) / ln(1.15)) * 100, is known.

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A 30-foot ladder reaches the wall at 20 feet above the ground. Find the measure of the angle that ladder makes with the ground and round to the nearest tenth of a degree

Answers

The measure of the angle that ladder makes with the ground 41.8°.

What is the measure of the angle that the ladder makes with the ground?

Given the data in the question;

This forms a right triangle.

Angle that ladder makes with the ground θ = ?Opposite of angle θ = 20ftHypotenuse = 30ft

To find the angle, we use trigonometric ratio.

Sine = Opposite / Hypotenuse

sinθ = 20ft / 30ft

sinθ = 2/3

θ = sin⁻¹( 2/3 )

θ = 41.8°

Therefore, the measure of the angle is 41.8°.

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Hi HELLPPPPPPPP PLEASE HELP I WILL MARK BRAINLEST IF YOU HELP ME!!! Find the volume of each solid and round to the nearest tenth if necessary..
ANSWER BOTH!!!!!

Answers

The volume of a sphere of radius 5 yd is 523.33 yd³.

What is the volume?

A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Different shapes have different volumes.

We have given,

the radius of a sphere is 5 yd,

To Find: the volume of the sphere solid

So,

Sphere volume = 4/3 πr³

= 4/3 * 3.14 * (5)³

= 4/3 * 3.14 * 125

= 523.33 yd³

Hence, the volume of a sphere of radius 5 yd is 523.33 yd³.

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Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst states we can therefore assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.

A sample of 76 stocks traded on the NYSE that day showed that 36 went up.

You are conducting a study to see if the proportion of stocks that went up is is significantly more than 0.3. You use a significance level of .

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =


What is the p-value for this sample? (Report answer accurate to four decimal places.)
p-value =

Answers

The test static value for the stocks is obtained as 3.482.

What is proportion?

In general, the term "proportion" refers to a part, share, or amount that is compared to a whole. According to the definition of proportion, two ratios are in proportion when they are equal.

It is given that -

The number of stocks n = 76

X = Number of stocks that got increased in price = 36

p = Proportion of stocks that got increased in price.

The formula for p is p = X/n.

Substitute the values in the equation -

p = 76/36 = 2.11111

Now find the value for q -

q = 1 - p

= 1 - 2.11111

= -1.11111

P=0.3

Q = 1 - P

= 1 - 0.3

= 0.7

Now, the values for H0 and H1 are -

H0 : P = 0.3

H1 : P > 0.3

Under H0, the test statistic is given by -

Z = (p - P)/√(PQ/n)

Substitute the values in the equation -

Z = (2.11111 - 0.3)/√(0.3 × 0.7/76)

Z = 1.81111 /√0.002763

Z = 1.81111 /0.052

Z = 3.482

Therefore, test statistic is 3.482.

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1. Yes-AA
2. Yes- SAS
3. Yes- SSS
4. No- Not Similar

Answers

The triangles are similar to the AA property.

What are similar triangles?

If two triangles have an equal number of corresponding sides and an equal number of corresponding angles, then they are comparable.

Similar figures are items that feature more than two figures that are the same shape but different sizes.

Given triangles ANF and HES

for ΔANF,

∠A = 29°, ∠N = 106°, and ∠F = 45°(from angle sum property)

for ΔHES

∠H = 45°, ∠S = 29° and ∠E = 106°(from angle sum property)

so ∠A  = ∠S

∠N = ∠E

and ∠F = ∠H

so ΔANF ≈ ΔHES

by AA similarity.

Hence option A is correct.

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I need help please!
What did Nixon's visit to China prove to the US?
A. If you can deal with one communist nation, others will likely join in
B. The Soviet Union was close to falling apart and communism would leave Eastern Europe
C. Most communist nations actually practice capitalism and have free elections
D. The communist world was not a single entity, and had many different positions

Answers

Nixon's visit to China was intended to advance their relationship and create new trade opportunities.

Why was Nixon's visit to China?

The President stated on live television that he would visit the PRC in 1972 on July 15, 1971. The American public was able to see photos of mainland China for the first time in more than 20 years during the week-long tour, which took place from February 21 to 28, 1972.

Nixon intended to protect the global populace, which meant he wanted to improve relations amongst the world's superpowers. Nixon's visit to China was intended to advance their relationship and create new trade opportunities.

A significant step in normalizing diplomatic ties with China, Nixon's visit was a big success. The following year, American tourists began to travel there, and American business organizations established a booming trade with China. The United States and China achieved complete diplomatic ties by the year 1979.

Therefore, the correct answer is option B. The Soviet Union was close to falling apart and communism would leave Eastern Europe.

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Let Y1,Y2,....,Y5 be a random sample of size 5 from a normal population with mean 0 and variance 1 and let Y bar=(1/5)sumation from i=1 to 5 Yi. Let Y6 be another independent observation from the same population. What is the distribution ofa) W= sumation from i=1 to 5 of Yi^2 ? Why ?b) U= sumation from i=1 to 5 of ( Yi- Y bar)^2? Why?c) sumation from i=1 to 5 of ( Yi- Y bar)^2 + Y6^2 ? Why?

Answers

a) From the given information, [tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

be a random sample of size 5 from a normal population with mean 0 and variance 1. Hence,

[tex]W=(\sum_{i=1}^5 Y_{i}^2)\sim X_{5}^2[/tex]

b) From the given information, the random variable is   [tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

and  [tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

representing the standard normal variables. Hence,

.[tex]U=(\sum_{i=1}^5 (Y_{i} - \bar{Y})^2) \sim X_{5}^2[/tex]

c) From the given information,[tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

representing the standard normal variables and moreover, [tex]Y_{6}[/tex]

is independent standard normal variable. Hence,  [tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2\sim X_{5}^2[/tex]

and

.[tex]Y_{6}^2\sim X_{1}^2[/tex]

What is Chi-square distribution?

Chi-square distribution with k degrees of freedom is defined as the sum of the k standard normal variables. This is also defined as the square of the deviations taken from the mean. Chi-square distribution is used for testing goodness of fit and independence in contingency tables.

• If  [tex]z_{1}, z_{2},...........z_{k}[/tex]

are independent standard normal variables, then

[tex]\sum_{i=1}^k z_{i}^2\sim X_{k}^2[/tex]

• If   [tex]X\sim X_{m}^2[/tex]

and   [tex]Y\sim X_{n}^2[/tex]

, then

[tex](X+Y)\sim X_{m+n}^2[/tex]

Step: 1

(a)

The distribution of    [tex]\sum_{i=1}^5 Y_{i}^2[/tex]

is obtained below:

From the given information, [tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

be a random sample of size 5 from a normal population with mean 0 and variance 1. Hence,

[tex]W=(\sum_{i=1}^5 Y_{i}^2)\sim X_{5}^2[/tex]

The random variable,  [tex]W=\sum_{i=1}^5 Y_{i}^2[/tex]

representing the sum of squares of standard normal variables and hence, the distribution of   [tex]W=\sum_{i=1}^5 Y_{i}^2[/tex]

is identified as chi-square distribution.

Hint:

Use chi-square distribution to find the distribution of

.[tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

Step: 2

(b)

From the given information, the random variable is   [tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

and  [tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

representing the standard normal variables. Hence,

.[tex]U=(\sum_{i=1}^5 (Y_{i} - \bar{Y})^2) \sim X_{5}^2[/tex]

The random variable    [tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

representing the sum of squares of deviations taken from the mean for 5 standard normal variables and hence, the distribution of
[tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

is chi-square distribution with 5 degrees of freedom.

Hint:

Use       [tex](X+Y)\sim X_{m+n}^2[/tex]  

to find the distribution of

[tex]\sum_{i=1}^5 (Y_{i} - \bar{Y})^2+Y_{6}^2[/tex]

Step: 3

(c)

From the given information,[tex]Y_{1}, Y_{2},...........Y_{5}[/tex]

representing the standard normal variables and moreover, [tex]Y_{6}[/tex]

is independent standard normal variable. Hence,  [tex]U=\sum_{i=1}^5 (Y_{i} - \bar{Y})^2\sim X_{5}^2[/tex]

and

.[tex]Y_{6}^2\sim X_{1}^2[/tex]

Therefore,

[tex]\sum_{i=1}^5 (Y_{i} - \bar{Y})^2+Y_{6}^2\sim X_{5+1}^2[/tex]

[tex]\sim X_{6}^2[/tex]

The distribution of    [tex]\sum_{i=1}^5 (Y_{i} - \bar{Y})^2+Y_{6}^2[/tex]

is identified as chi-square distribution with degrees of freedom is obtained by adding the degrees of freedom of[tex]\sum_{i=1}^5 (Y_{i} - \bar{Y})^2[/tex]

and the degrees of freedom of   [tex]Y_{6}^2[/tex].

The distribution of   [tex]W=\sum_{i=1}^5 Y_{i}^2[/tex]

is chi-square distribution with 5 degrees of freedom.

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A particle that moves along a straight line has velocity
v(t)=t^2e^(-5t)
meters per second after t seconds. How many meters will it travel during the first t seconds (from time=0 to time=t)?

Answers

Refer to the attached image. Your question asked how many meters the particle traveled, but you did not provide the values of t, so I have only provided you the position function. Hope this helps you out at least! Have a good one.

HOME LIFE In a survey, 837 people were asked about their living arrangements. Of the people surveyed, 329 of them lived in apartments. Of the 629 people who live with at least one other person, 218 live in an apartment.
Using this data, if a person is chosen at random, what is the probability that he or she is living with another person, given that they live in an apartment?

Answers

The probability that a person lives with another person, given that they live in an apartment, is approximately 0.664.

We need to utilise conditional probability to determine the likelihood that a person lives with another person given that they reside in an apartment.

Let's define the subsequent occasions:

A: at least one other person lives with the individual.

B: The resident is an apartment dweller.

The probability that a person shares a home with at most one other person, assuming that they reside in an apartment, is P(A|B).

We are aware of:

The probability that someone resides in an apartment is P(B) = 329/837.

The probability that a person shares a home with at most one other person, given that they reside in an apartment, is given by P(A|B) = 218/329.

P(A|B) can be calculated using Bayes' theorem as follows:

P(A|B) equals P(B|A)*P(A)/P (B)

We may calculate P(B|A), the probability that an individual resides in an apartments given that they share a residence with at most one other person, using the following formula:

P(A and B) = P(B|A) (A)

We are aware of:

The probability that someone lives in an apartment with at most one other person is P(A and B) = 218/837.

The probability that someone lives with at most one other person is P(A) = 629/837.

By entering these values, we obtain:

P(B|A) = (218/837) / (629/837) = 218/629

Now that all the numbers have been entered, we can calculate P(A|B):

P(A|B) = (218/629) * (629/837) / (329/837) = 0.664

Given that they reside in an apartment, the probability that a person lives with another individual is roughly 0.664.

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algebra please help evaluate the function

Answers

The required individual functions are given as g(x) = x⁴- 6 and f(x) = [tex]\sqrt[7]{x}[/tex].

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
Given funciton
h(x) = (f o g) (x)

Where g(x) = x⁴- 6 and h(x) = [tex]\sqrt[7]{x^4-6}[/tex]

Since, put h(x) ⇒ f(x) and  g(x) = x⁴- 6
f(x) =  [tex]\sqrt[7]{g(x)}[/tex]

Again put g(x) ⇒ x
f(x) = [tex]\sqrt[7]{x}[/tex]


Thus, the required individual functions are given as f(x) = x⁴- 6 and g(x) = [tex]\sqrt[7]{x}[/tex].

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The size of fish is very important to commercial fishing. A study conducted in 2012 found the length of Atlantic cod caught in nets in Karlskrona to have a mean of 49.9 cm and a standard deviation of 3.74 cm.

Round the probabilities to four decimal places.

It is possible with rounding for a probability to be 0.0000..


c) Find the probability that a randomly selected Atlantic cod has a length of 53.68 cm or less.

this my homework problem

Answers

The probability that a randomly selected Atlantic cod has a length of 53.68 cm or less is given by the equation P ( x < 53.68 ) = 0.8439

What is a z-score?

The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.

The Z-score is calculated using the formula:

z = (x - μ)/σ

where z: standard score

x: observed value

μ: mean of the sample

σ: standard deviation of the sample

Given data ,

Let the probability that a randomly selected Atlantic cod has a length of 53.68 cm or less be represented as P

Now , the equation will be

The observed value of x = 53.68 cm

The mean of the sample μ = 49.9 cm

The standard deviation of the sample σ = 3.74 cm

Now , z-score is calculated using the formula:

z = (x - μ)/σ

Substituting the values in the equation , we get

z = ( 53.68 - 49.9 ) / 3.74

z = 1.0107

Now ,the p value from the z table is

P ( x < 53.68 ) = 0.84392

And , the probability is P ( x < 53.68 ) = 84.392 %

Hence , the probability is 84.392 %

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EXTRACURRICULARS The table shows the results of a survey about what students plan to do after school. How can you determine the probability that a student selected at random will be doing homework or participating in a sport after school? Justify your reasoning.

Answers

As a result, there is a 52% chance that a pupil chosen at random will be doing homework or playing an activity after school.

What is a Probability example?

By reducing the number of positive outcomes by the overall number of potential outcomes, probability—the chance that a will occur—is determined. The most basic illustration is a coin toss. There are just two results when users flip a coin: either it shows up heads or tails.

We need to discover the sum of the percentage of students who plan to do homework and the percentage of students who plan to engage in a sport in order to calculate the likelihood that a student chosen at random will be doing homework or playing a sport after school.

Therefore, the likelihood that a pupil chosen at random will be working on homework or playing an activity after school is:

24% + 28% = 52%

This is because the two events are not mutually exclusive, and a student may plan to do both activities after school.

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A plumber had two pipes. The ratio of the legth of the longer pipe to the shorter pipe was 9:2. When he cut 1.65m from the longer pipe, the remaining length was 3 times that of the shorter pipe. Find the length of the shorter pipe in meters

Answers

The length of the shorter pipe will be 1.065 meters.


What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that a plumber had two pipes. The ratio of the length of the longer pipe to the shorter pipe was 9:2.

When he cut 1.65m from the longer pipe, the remaining length was 3 times that of the shorter pipe.

L / S = 9 / 2

L - 1.65 = 3S

4.5S - 1.65 = 3S

1.5S = 1.65

S = 1.065 meters

Hence, the measure of the short pipe will be 1.065 meters.

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Type the correct answer in the box. Use numerals instead of words.
Acar enters a traffic circle at point R. and moves counterclockwise 296 feet before exiting the traffic circle at point P. To the nearest degre
measure of the central angle, ZPQR?
150 ft
296 ft
R
The measure of PQR is approximately
Reset
Next

Answers

The measure of ZPQR is approximately 113°. This can be solved usiing the concept of geometry.

What is Geometry?

One of the first areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects. A geometer is a mathematician who specializes in geometry.

Therefore, to find the measure of ZPQR, we would follow the following steps:

Let x= measure of <PQR

Hence, the measure of <PQR

296 = x/360 x 3.14 x 2 x 150

Hence, x = 113.12 °

Approximately, the measure of ZPQR is 113 °

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Find the exact lengths of the sides of quadrilateral ABCD with vertices A(4, 5), B(-3, 3), C(-6,-13) and D(6,-2).

Answers

As a result, the answers to the above quadrilateral issue are A.5, B.2, 3, C.-1/5, and D.2/3.

what is quadrilateral ?

In terms of the geometry, a quadrilateral is really a four-sided polygon with four corners and four corners. Its origins originate from the Latin terms tetra and latus (meaning "side"). A rectangle is a this double form with four sides, 4 vertices, with four corners. Two main types of convex and convex exist. Convex bedbugs or bed bug also have a number of subclasses, such as trapezoids, parallelograms, quarters, rhombuses, and squares. Corresponding points come in many irregular configurations, such as quadrilaterals, trapezoids, rectangles, kites, square, and rhombuses.

given

The vertices of the quadrilateral ABCD are A(-4, -5), B(-3, 0), C(0, 2), and D. (5, 1).

We need to determine whether ABCD is a trapezoidal shape or not.

We are known that a trapezoid has one set of parallel opposed sides, making it a quadrilateral. Moreover, the slopes of two parallel lines are equal.

To start, the slopes of sides AB, BC, CD, and DA will be calculated.

It has

The incline for

AB =0+5/ -3+4

5. In the first step.

Step 2: The slope in BC is

=> 2-0 / 0+3

=> 2/3.

Step 3: The CD's gradient is

1-2/5-0 is equivalent to -1/5.

The gradient of DA is equal to in step four.

=>-5.1/-4.4/2.3

=>2/3.

As a result, the answers to the above quadrilateral issue are A.5, B.2, 3, C.-1/5, and D.2/3.

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The dot plot shows the ages of the 20 people currently in Ms. Jens classroom.

Which MEASURE OF VARIATION would be best to describe this distribution

A. median

B. interquartile range

C. range

D. mean

Answers

The correct measure of variation for best to describe this distribution is,

⇒ interquartile range

Option B is true.

What is interquartile range?

For a data set has outliers and variability is often summarized by a statistic called the interquartile range, which is the difference between the first and third quartiles.

Given that;

The dot plot shows the ages of the 20 people currently in Ms. Jens classroom.

Hence, To describe this distribution we can use the interquartile range.

Thus, The correct measure of variation for best to describe this distribution is,

⇒ interquartile range

Option B is true.

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A light bulb consumes 1800 watt-hours per day. How long does it take to consume 5850 watt-hours?
days hours
X
S

Answers

Answer:

it takes 0.30769 days or 7.3846 hours for the light bulb to consume 5850 watt-hours.

Step-by-step explanation:

To solve for the time, we can set up a proportion:

1800 watt-hours / day = X / 5850 watt-hours

Cross-multiplying, we get:

1800 watt-hours * 1 day = X * 5850 watt-hours

Simplifying, we get:

X = (1800 watt-hours * 1 day) / 5850 watt-hours

X = 0.30769 days

To convert to hours, we can multiply by 24:

X = 0.30769 days * 24 hours/day

X = 7.3846 hours

Therefore, it takes 0.30769 days or 7.3846 hours for the light bulb to consume 5850 watt-hours.

makayla is taking a math course and is working with the perimeter of rectangles. she knows the perimeter and length of her rectangle but wants to solve for the width. rearrange the following equation for w, where p is the perimeter, l is the length, and w is the width of the rectangle.

Answers

The equation for w(width of rectangle) is: W = (P - 2L)/2

The correct answer is an option (c)

We know that the formula for the perimeter of the rectangle is:

P = 2L + 2W

where P is the perimeter of the rectangle,

L is the length of the rectangle,

and W is the width of the rectangle.

We need to rearrange this equation for w.

Consider equation,

P = 2L + 2W

P - 2L = 2L + 2W - 2L      ......(subtract 2L from each side of equation)

P - 2L = 2W

(P - 2L)/2 = 2W/2             .....(divide each side by 2)

W = (P - 2L)/2

Therefore, the correct answer is  W equals the quantity P minus 2 times L all over 2

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The complete question is:

Makayla is taking a math course and is working with the perimeter of rectangles. She knows the perimeter and length of her rectangle but wants to solve for the width. Rearrange the following equation for W, where P is the perimeter, L is the length, and W is the width of the rectangle. P = 2L + 2W.

a) W = 2P − 2L

b) W = P/ 2-2 times L

c) W equals the quantity P minus 2 times L all over 2

d) W = 2P + 2L

Answer:

c) W equals the quantity P minus 2 times L all over 2

Step-by-step explanation:i just took the test

CAN SOMEONE HELP WITH THIS?✨

Answers

In the polynomial f(x) = 3x² - 2x + 5, f(0) is solved to get -2

From the equation of the tangent line

m= -2

b = 5

How to find the derivative

The derivative of the polynomial f(x) = 3x² - 2x + 5 is solved to be

f'(x) = 2(3)x - 1(2)

f'(x) = 6x - 2

f(0) = -2

Equation of the tangent to the parabola f(x) = 3x² - 2x + 5

f'(x) = 6x - 2 at x = 0, f'(x) = -2 hence the slope, m is -2

Using the point slope formula for (0, 5)

(y - 5) = m (x - 0)

y - 5 = -2x - 0

y = -2x + 5

comparing with y = mx + b

m = -2 and b = 5

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