consider f ( x ) = x x 1 . find the intervals where f is increasing and the intervals where f is decreasing.

Answers

Answer 1

The function [tex]f(x) = x^{x^{\frac{1}{x} }}[/tex] is increasing on the interval [tex](0, e^{1/e})[/tex] and decreasing on the interval [tex](e^{1/e}, \infty).[/tex]

A function is a mathematical rule that assigns a unique output or value for each input in its domain.

In this case, the function,

[tex]= > f(x) = x^{x^{\frac{1}{x} }}[/tex]

takes in a real number as input and returns its output.

And we can determine the intervals on which the function is increasing or decreasing by analyzing its first derivative.

In order to find the first derivative of f(x), we use calculus techniques such as power rule and chain rule.

Taking the derivative yields

[tex]= > f'(x) = (1 + x log(x)x^{x^{\frac{1}{x} }} -1)[/tex]

This derivative is positive on the interval [tex](0, e^{1/e})[/tex] where e is the mathematical constant approximately equal to 2.718,

so the function is increasing on this interval.

The function is decreasing on the interval [tex](e^{1/e}, \infty).[/tex]

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Related Questions

You have a function that takes in an X value and produces a Y value. The x value equals 2 times the y value, plus 7 more.What's the x value when the y value equals 12? I need help

Answers

The x value when the y value equals 12 is calculated to be 31

How to find the value of x

From the problem the equation is deduced to be : x = 2y + 7

When y = 12,

we can substitute this value into the equation to find the corresponding x value:

x = 2(12) + 7

x = 24 + 7

x = 31

Therefore, the x value when the y value equals 12 is 31.

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1 more after this lol

Answers

The exponential Function is  y(t) = 1500 [tex]e^{-0.0.325t[/tex].

What is Exponential Function?

Calculating the exponential growth or decay of a given collection of data is done using an exponential function, which is a mathematical function. Exponential functions, for instance, can be used to estimate population changes, loan interest rates, bacterial growth, radioactive decay, and disease spread.

An exponential function is defined by the formula f(x) = [tex]a^x[/tex], where the input variable x occurs as an exponent.

Given:

Forest covered the area of = 1500 Km²

Now, the area is decreased by 3.25%

So, the exponential Function to represent the situation

y(0)= 1500 km², r = -3.25% = - 0.0325

y(t) = A [tex]e^{rt[/tex], and A = y(0) = 1500

so, y(t) = 1500 [tex]e^{-0.0.325t[/tex]

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what are the roots of 3x^4-21x^2+18

Answers

Answer:

  {-√6, -1, 1, √6}

Step-by-step explanation:

You want the roots of the quartic 3x^4-21x^2+18.

Factors

We can find the roots by factoring to linear factors:

  = 3(x^4 -7x^2 +6)

  = 3(x^2 -6)(x^2 -1) . . . . . . . 6 = (-1)(-6) are factors with a sum of -7

  = 3(x -√6)(x +√6)(x -1)(x +1) . . . . . a^2 -b^2 = (a -b)(a +b)

The roots of the quartic are ±√6 and ±1.

you come across a bomb that is about to go off if you do not stop it! to neutralize the bomb, you must get exactly four gallons of water in the empty tub to which it is attached. the only equipment you have is one empty 3-gallon jug, one empty 5-gallon jug and an unlimited supply of water. there are no markings on the jugs or the tub. the only thing you know is that one jug is 3-gallon and the other jug is 5-gallon. the jugs have to be completely filled. you cannot make eyeball assumptions about a half-filled jug. you have to make sure you get exactly 4 gallons in the tub. what do you do?

Answers

Fill the 3-gallon jug all the way.

Pour those 3 gallons of water into the 5-gallon jug.

Fill the 3-gallon jug all the way again, and pour as much as it takes to fill the 5-gallon jug (which is 2 gallons).

Now you have 5 gallons in the 5-gallon jug and 1 gallon in the 3-gallon jug.

Empty the 5-gallon jug.

Pour the 1 gallon in the 3-gallon jug into the 5-gallon jug.

Now fill the 3-gallon jug all the way, and pour all 3 gallons into the 5-gallon jug, which, added to the 1 gallon already in there, and leaves you with exactly 4 gallons.

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Fill the 3-gallon jug all the way.

Pour those 3 gallons of water into the 5-gallon jug.

Fill the 3-gallon jug all the way again, and pour as much as it takes to fill the 5-gallon jug (which is 2 gallons).

Now you have 5 gallons in the 5-gallon jug and 1 gallon in the 3-gallon jug.

Empty the 5-gallon jug.

Pour the 1 gallon in the 3-gallon jug into the 5-gallon jug.

Now fill the 3-gallon jug all the way, and pour all 3 gallons into the 5-gallon jug, which, added to the 1-gallon already in there, leaves you with exactly 4 gallons.

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15 (x-3)/5= 3 (2x-3) without the distributive property ( the / symbol is division)

Answers

Answer:

brooooooooooo I got x=0

List the sample space for rolling a fair eight-sided die.

S = {1}
S = {8}
S = {1, 2, 3, 4, 5, 6}
S = {1, 2, 3, 4, 5, 6, 7, 8}

Answers

Answer: The sample space of rolling an eight-sided die would be (1, 2, 3, 4, 5, 6, 7, 8)

Step-by-step explanation: thank you

Eric throws a biased coin 10 times and gets tails 3 times.
Sue throws the same coin 50 times and gets tails 20 times.
Audi is going to throw the coin once.
Use Erics and Sues results to work out an estimate for the probability that Aadi will get tails. write your fraction in the form a/b.

Answers

Answer:

Below

Step-by-step explanation:

Out of 50 + 10 = 60 tries, 3 + 20 = 23 times were tails

  23/60 chance of tails

The estimate of the probability that Audi gets tails is given as follows:

p = 23/60.

How to calculate a probability?

A probability is calculated via the division of the number of desired outcomes by the number of total outcomes.

Hence the probability of each person getting tails when they throw a biased coin is given as follows:

Eric: 3/10.Sue: 20/50 = 2/5.

The total number of throws is given as follows:

50 + 10 = 60.

The number of tails is given as follows:

3 + 20 = 23.

Hence the probability for Audi is given as follows:

p = 23/60.

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Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution. Estimate p(6) for n = 18 and p = 0. 3.

Answers

By applying normal approximation to the binomial concept, it can be concluded that the indicated probability is 0.62134

Normal approximation to the binomial is a method of approximating the probabilities associated with the binomial distribution using the normal distribution.

μ = n.p

σ = √np(1-p)

where μ is the mean, n is the number of trials, p is the success probability and σ is the standard deviation.

Now we have:

x = 6

n = 18

p = 0.3

Thus we can calculate the mean:

μ = np

  = 18 * 0.3

  = 5.4

Now we calculate the standard deviation

σ = √μ (1-p)

  = √ 5.4 (1 - 0.3)

  = √ 5.4 * 0.7

  = √ 3.78

  = 1.944

Then we can find the z-score using the mean and standard deviation found in the previous step:

z-score = (x – μ) / σ

            = (6 - 5.4) / 1.944

            = 0.6 / 1.944

            = 0.309

And finally, we can obtain from the z table that P(6) = P(x<0.309) = 0.62134

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which of the following statements is least accurate? multiple choice question. the height of each rectangle represents cumulative frequency or cumulative relative frequency. the rectangles of a histogram represent grouped data. the rectangles of a histogram are drawn with no space, or gaps, between them. the rectangles of a histogram represent both the class width and frequency, or relative frequency, of the respective class.

Answers

The following statements is least accurate: When adding and subtracting, consider the number of buildings instead of Sf.

What does less accurate mean?

When adding or subtracting numbers, the number of digits in the result must be equal to the smallest number of digits after the decimal point of a term in the sum. How closely a measured value agrees with a reference or known value is referred to as accuracy. For example, if you get a weight measurement of 3.2 kg for a substance in a laboratory, but the actual or known weight is 10 kg, your measurement is not accurate.In this case, your measurement is nowhere near the known value.

Typically, bottom-up estimates fall into this category: the most accurate estimate is the final estimate because it is created by estimating individual costs for different parts of the project and then combining them into one estimate.

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At what point on the curve x = 3t^2 + 5, y = t^3 − 7 does the tangent line have slope 1/2 ?

Answers

The tangent line on the curve x = 3t² + 5 , y = t³ - 7 have a slope as 1/2 at the point (8, -6).

The Tangent Line to a curve at a specific point is calculated  by the derivative of the curve at that point.

The Slope of the tangent line at a point (x₀, y₀) is given by the derivative of the curve at that point, denoted as f'(x₀).

The curve x = 3t² + 5 , y = t³ - 7 ,

we have to find the value of t such that the slope of the tangent line at that point is 1/2.

we first find the derivative of y with respect to x, which is given by:

⇒ dy/dt = 3t² and dx/dt = 6t

Using chain rule to find the derivative of y with respect to x:

⇒ dy/dx = dy/dt × dt/dx = (3t²)/6t = t/2

Next, we equate derivative to 1/2 and solve for t ;

⇒ t/2 = 1/2

⇒ t = 1

So, the point where the tangent line has slope 1/2 is

⇒ (x, y) = (3t² + 5, t³ - 7)

⇒ (8, -6).

Therefore , the point is (8,-6) .

The given question is incomplete , the complete question is

At what point on the curve x = 3t² + 5 , y = t³ - 7 , does the tangent line have slope as "1/2" ?

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There are only green, yellow and black beads in a bag.
A bead is taken at random from the bag.
Complete the table below.
Colour
Green
Yellow
Black
Number of beads
8
8
Probability
15

Answers

Green Probability: 2/5

Yellow Probability: 2/5

Black Number of Beads: 4

If the chance to get a black bead is 1/5 the chance to get green or yellow has to be 4/5. Since both have the same amount of beads, the chance is 2/5 for each of them.

Now we know that 8 beads = 2/5 chance.

To find the number for 1/5 we just divide by 2.

8/2 = 4

Answer:

green Probability:2/5

yellow Probability:2/5

black Number of Beads:4

Step-by-step explanation                                                                                  best of luck

Two students missed the first Mid exam. Their excuse was that their car had gotten a flat tire. On the next mid exam, these students were asked to identify which tire had become flat (driver's side front, driver's side rear, passenger's side front, passenger's side rear). What is the probability that the two students pick the same tire (assuming the students are randomly choosing)? Submit your answer as a decimal with four digits of accuracy.

Answers

Answer:

1/4=0.25

Step-by-step explanation:

The probability that both students pick the same tire is (1/4) * (1/4) = 1/16

The probability of the first student picking a specific tire is 1 in 4, or 1/4. The probability of the second student also picking that same tire is also 1 in 4. To find the probability that both students pick the same tire, we need to multiply the probabilities of each event.

So, the probability that both students pick the same tire is (1/4) * (1/4) = 1/16. This means that the chance of both students picking the same tire is 0.0625 or 6.25%.

To summarize, there are four possible tires that could have gotten a flat, and two students are asked to identify the tire. If each student randomly chooses a tire, the probability that both students will pick the same tire is 1 in 16, or 0.0625. This means that the chance of both students picking the same tire is low, and the likelihood of them choosing different tires is much higher.

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write the fully simplified negation of 3 < x ≤ 4

Answers

The given inequality states that the value of x is greater than 3 and less than or equal to 4.

3 ≥ x > 4

Given inequality: 3 < x ≤ 4

Negating the given inequality:

1. Negate the inequality symbol:

3 ≥ x

2. Negate the comparison operator:

3 ≥ x > 4

The given inequality states that the value of x is greater than 3 and less than or equal to 4. When we negate this inequality, we get that the value of x is greater than or equal to 3 and greater than 4. This means that the fully simplified negation of 3 < x ≤ 4 is 3 ≥ x > 4.

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Roy took out a 30-year loan for $155,000 at an APR of 5. 5%, compounded

monthly. Approximately what would be the total cost of his loan if he paid it

off 4 years early?

O

A. $312,423. 90

O

B. $37,842. 06

O

O

c. $274,581. 84

D. $316,825. 20

Answers

Option A is the correct Answer. The total cost of his loan if he paid it off 4 years early is 312,423.90

We have given:

The principal amount which is 30,000

Time which is 30 year

The rate which is 5.5%

And since, we have to find 4 years early so, the time would be: 20-4=16 years.

And since, we have to find for 12 months

Hence, n=12

We have the formula to calculate compound interest:

[tex]A=P(1+\frac{r}{n})^n^t[/tex]

Where

A=compound interest

P= Orginal amount deposited.

r= rate

n=times its compounds per year monthly

t= years.

P=155000, r=5.5, t=16

On substituting the values we get:

[tex]A=155000(1+\frac{0.055}{12})^1^2^*^1^6\\\\A=155000(1+\frac{0.055}{12})^1^9^6\\\\A=155000(14884.0754)\\\\A=312,423. 90[/tex]

Therefore, the compound interest is 312,423.90

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The dog shelter has Labradors, Terriers, and Golden Retrievers available for adoption. If P(terriers) = 15%, interpret the likelihood of randomly selecting a terrier from the shelter.

Likely
Unlikely
Equally likely and unlikely
This value is not possible to represent probability of a chance event

Answers

The interpretation that the likelihood that the first question will be true is (a) Likely.

What is probability?

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

To interpret the likelihood that the first question will be true.

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

Probability value

The value of the probability and the notation are given as

P(true) = 0.8

As a general rule of probability, we have

Range of probability value = 0 to 1 (inclusive)

Unlikely = less than 0.5

Equally likely and unlikely = 0.5

Likely = greater than 0.5

Using the above as a guide, we have the following:

The value of P(true) = 0.8 is greater than 0.5

This that the probability is likely

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Let n be a non-negative integer. Then the number of divisors of the form "4n + 1" of the number (10)10. (11)11. (13)13 is equal to_____

Answers

The number of divisors of 1730 of the form 4n + 1 is 20.

What do you mean by integers?

An integer is a whole number, meaning it can be positive, negative, or zero, but it cannot be a fraction or a decimal. Integers are a subset of real numbers, which also include fractional and decimal numbers.

Integers are commonly used in mathematics and computer science for counting and for performing arithmetic operations such as addition, subtraction, multiplication, and division. They are also used to represent the magnitude of a quantity, such as the number of items in a set or the time elapsed in seconds.

In computer programming, integers are often stored as binary numbers, which are sequences of bits that represent positive or negative whole numbers. Different computer architectures have different numbers of bits for representing integers, with common sizes being 8, 16, 32, and 64 bits.

The number (10)10. (11)11. (13)13 is equal to 11 × 13 × 10 = 1730 in decimal.

A divisor of a number can be represented as (4n + 1) where n is a non-negative integer.

To find the number of divisors of 1730 of the form 4n + 1, we need to find the number of factors of 1730 that can be expressed as 4n + 1.

First, we find the prime factorization of 1730:

1730 = 2 × 3 × 5 × 29

Since 1730 is an odd number, one of its divisors must also be an odd number.

The only possible values for n are 0, 1, 2, ..., (number of odd divisors - 1).

In this case, the number of odd divisors of 1730 can be calculated as:

(number of ways to choose 0 odd factors) × (number of ways to choose 1 odd factor) × (number of ways to choose 2 odd factors) × ... × (number of ways to choose 4 odd factors)

= 1 × 4 × 5 × 1 = 20

Thus, the number of divisors of 1730 of the form 4n + 1 is 20.

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I’ll give Brainliest and points!!!!
* image is provided*
Plssss helpppp!!!!!!

Answers

Answer: C. 12000(1.05)^n < 20000

Step-by-step explanation:

When it says that the tuition is increasing at a rate of 5%, it means that you add 1

1+0.5= 1.05

Everything else is the same so you just add 1 to 0.5 and that is the answer.

Check whether
(
2
,
11
)
is a solution to the system, then choose all true statements from the list.

Equation 1:

2
x
+
5
y
=
34

Equation 2:

7
y
=

61

8
x

Group of answer choices

The point does not satisfy either equation

The point satisfies only equation 1

The point satisfies both equation 1 and 2

The point satisfies only equation 2

The point is a solution to the system

The point is not a solution to the system

Answers

The correct statements from the group of answer choices are:

The point satisfies both equation 1 and 2

The point is a solution to the system

What is linear equation ?

A linear equation is an algebraic equation with simply a constant and a first-order (linear) term of the form y=mx+b, where m is the slope and b is the y-intercept. The above is sometimes referred to as a "linear equation with two variables," where y and x are the variables.

To check whether the point (2, 11) is a solution to the system, we need to substitute these values into both equations and see if they hold true.

For equation 1:

-2 * 2 + 5 * 11 = -4 + 55 = 51

For equation 2:

-7 * 11 = -77

-61 - 8 * 2 = -61 - 16 = -77

Since both equations are true for the given point, the statement "The point satisfies both equation 1 and 2" is correct and "The point is a solution to the system" is also correct.

Therefore, the correct statements from the group of answer choices are:

The point satisfies both equation 1 and 2

The point is a solution to the system

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Find the number of successes x suggested by the given statement. A running shoe manufacturer randomly selects 386 of its shoes for quality assurance and finds that 3. 12% of these shoes are found to be defective.

Answers

A running shoe manufacturer randomly selects 386 of its shoes for quality assurance and finds that 3. 12% of these shoes are found to be defective. The number of successes (defective shoes) is 12

How did we get the value?

The number of defective shoes can be calculated by multiplying the percentage of defective shoes (3.12%) by the total number of shoes selected (386).

(3.12/100) * 386 = 12

So, the number of successes (defective shoes) is 12

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Fill in the table using this function rule Y=3x+1

Answers

The complete table of values is

x  1   2   3  4

y  4  7  10  13

How to complete the table

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

y = 3x + 1

Set the variable x from 1 to 4

So, we have

y = 3 * 1 + 1 = 4

y = 3 * 2 + 1 = 7

y = 3 * 3 + 1 = 10

y = 3 * 4 + 1 = 13

When represented on a table of values, we have

x  1   2   3  4

y  4  7  10  13

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find an equation of the sphere with center and radius . what is the intersection of this sphere with the -plane?

Answers

The intersection of this sphere with the -plane is (y+6)²+(z-4)²=21

The equation of a sphere centered at (h,k,l) and radius r is given by:

(x−h)²+(y−k)²+(z−l)²=r²

where x,y, and z represent the coordinates of the points on the surface of the surface.

so if the center is (-3,2,5) and radius r=4 then we can plug the values in the above formula:

consider the points  h=-3 k=2 l=5 and r=4.

(x−(-3))²+(y−2)²+(z−5)²=4²

(x+3)²+(y−2)²+(z−5)²=16.

If the sphere intersects the yz-plane then x=0

The resulting equation is an equation of a circle with a radius r=√21

and at the center with (6,-4) on the yz-plane

with yx-plane:

⇒(x−2)²+(y+6)²+(z−4)²=25

⇒ (0−2)²+(y+6)²+(z−4)²=25

⇒4+(y+6)²+(z−4)²=25

⇒(y+6)²+(z−4)²=25-4

⇒(y+6)²+(z−4)²=21

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Ben collected data from a group of 12 people. He measured each person’s resting heart rate and recorded the average number of hours each person exercised per week. He created a scatterplot to show the data he collected.




Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of ​​​​​​​8 hours each week?

Answers

Based on the scatterplot, 50 beats per minute is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of ​​​​​​​8 hours each week.

What is a scatter plot used for?In an effort to demonstrate the degree to which one variable is influenced by another, scatter plots are used to plot data points on a horizontal and vertical axis. The values of the columns set on the X and Y axes determine the position of the marker that represents each row in the data table.With a specific confidence range, a scatter plot can infer many types of correlations between variables. For instance, height would be on the x-axis while weight and height would be on the y-axis. Positive (increasing), negative (falling), or no correlations may exist (uncorrelated).The higher the correlation between the two variables, or the tighter the association, the more closely the data points resemble a straight line when they are plotted.

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How far is 10 yards in feet?

Answers

Answer: 10 yards is equivalent to 30 feet.

Step-by-step explanation:

In 30 feet, there are 10 yards. Therefore 3 feet are equal to 1 yard. To precisely calculate the length in feet, divide 4 yards by 3.

How are yards calculated using dimensions?Let's now convert each of the three dimensions to a yard. How to do it is as follows: Convert the measurement from inches to yards (6 x 36 = 0.167 yards). Do the math to convert 12 feet x 3 into 4 yards. The square yard is equal to the length times the width, expressed in feet, multiplied by 9. (SQYDS).A square yard measures 9 square feet. The area value must be multiplied by 9. You don't need much to change an area from square feet to square yards. For instance, you might divide 27 square feet by 9 to get square yards.

Add three to the total number of yards.

Add 10 to 3 since 3 feet are equivalent to 1 yard.

10 × 3 = 30.

10 yards equal 30 feet.

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when a retired police officer passes away, he leaves $220000to be divided among his four children and four grandchildren. the will specifies that each child is to get twice as much as each grandchild. how much does each get?

Answers

Answer:

Each child gets $36666.67, each grandchild gets $18333.33

Step-by-step explanation:

220000/6= 36666.67,

36666.67/2= 18333.33

A right cone has a height of 12 inches and a volume of 64π in³. What is the radius of the cone?

Answers

The radius of the cone is given by the equation r = 4 inches

What is a Cone?

A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the center of base) called the apex or vertex.

The volume of a cone is given by the equation

Volume of Cone = ( 1/3 ) πr²h

where r is the radius of the cone

h is the height of the cone

Surface area of the cone = πrl

where l = √ ( b² + r² )

Given data ,

Let the radius of the cone be represented as r

Now , the equation will be

The volume of the cone = 64π inches³

The height of the cone h = 12 inches

So , Volume of Cone = ( 1/3 ) πr²h

Substituting the values in the equation , we get

64π = ( 1/3 )π r² ( 12 )

Divide by π on both sides of the equation , we get

64 = 4r²

Divide by 4 on both sides of the equation , we get

r² = 16

Taking square roots on both sides of the equation , we get

r = 4 inches

Therefore , the value of r is 4 inches

Hence , the radius of cone is 4 inches

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Which r-value suggests a weak negative correlation?
A. r= 0.1847
B. r=-0.1847
C. r= 0.9816
D. r=-0.9816

Answers

The r-value which suggests a weak negative correlation is B. r = -0.1847.

What is a negative correlation?

In statistics, the term "pattern" or "connection" refers to a pattern or relationship between two variables. The degree to which two variables move in opposition to one another is characterized by a negative correlation. For instance, when X and Y are the two variables, a rise in X causes a reduction in Y. Inverse correlation is another name for a negative correlation coefficient. Scatterplots are used to visualise correlation relationships.

We know that the negative correlation weakens as it moves closer to a positive value. From the given values we see that the weakest negative correlation is r = -1847.

Hence, the r-value which suggests a weak negative correlation is B. r = -0.1847.

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let f ( x ) = 2 x 3 and g ( x ) = 2x 2 4x . after simplifying, ( f ∘ g ) ( x )

Answers

for the functions f and g, fog is given by

fog (x) = 2 ( 2x ^2 +4x ) +3  = 4x^2 +8x+3

The equation of f(x) is  f ( x ) = 2 x+ 3 and g ( x ) = 2x^ 2+ 4x

then fog is given by

fog (x) = 2 ( 2x ^2 +4x ) +3

         = 4x^2 +8x+3

The graph of g(x) is shifted 3 units to the left. This is a horizontal translation.

For horizontal translation, we follow the following rule >>>

Let parent function be f(x), then

• f(x+a) is the parent translated "a" units left

• f(x-a) is the parent translated "a" units right for function

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Which term could be put in the blank to create a fully simplified polynomial written in standard form?
Which term could be put in the blank to create a fully simplified polynomial written in standard form?
8x3y2−_____+3xy2−4y3

x2y2
x3y3
7xy2
7x0y3

Answers

The missing term in the polynomial is 8x³y² - __ + 3xy² - 4y³ is  x²y².

What is a polynomial?

A polynomial is an algebraic expression.

A polynomial of degree n in variable x can be written as,

a₀xⁿ + a₁xⁿ⁻¹ + a₂xⁿ⁻² +...+ aₙ.

Given, A polynomial 8x³y² - __ + 3xy² - 4y³.

Now, If we observe the terms we can conclude 'x' has decreasing powers and y has increasing powers, therefore, the term could be put in the blank to create a fully simplified polynomial written in standard form is x²y².

So, The polynomial is 8x³y² - x²y² + 3xy² - 4y³.

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The triangles above are

Answers

The triangles in this problem are similar.

What are similar triangles?

Similar triangles share these two features:

Congruent angles, that is, angles that have the same measure.Proportional side lengths.

For this problem, we have that the side lengths are proportional, as:

3/6 = 4/8 = 5/10 = 0.5.

(same ratio, applying the trigonometric ratios we would find them to have the same angle measures).

However, the triangles in this problem are not congruent, as they have different side lengths.

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question content area top part 1 find t, n, and κ for the space curve r(t)=−ti−(a cosh (t/a))j, a>0.

Answers

t is the parameter, n is the unit normal vector, and κ is the curvature of the space curve.

To find t, n, and κ for the space curve r(t)=-ti-(a cos h (t/a))j, first calculate the position vector r, which is r(t)=-ti-(a cos h (t/a))j. Then, calculate the derivative of the position vector to find the tangent vector t, which is t=i+(t/a)sin h(t/a)j. Next, calculate the second derivative of the position vector to find the normal vector n, which is n=(-(1/a) sin h(t/a))i+(1/a2)(cos h(t/a))j. Lastly, calculate the curvature κ by dividing the magnitude of the second derivative of the position vector by the square of the magnitude of the first derivative, which is κ=(1/a2)(cos h(t/a))/(1+(t/a) sin h(t/a))2.

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