how does restricting the range of a variable affect the correlation coefficient?

Answer:

-6y+2

Step-by-step explanation:

Trust

To evaluate the limit of the function (x³ + y²)/(x² + y²) as (x, y) approaches (0, 0), we can use the Squeeze Theorem. By examining the function along different paths approaching the origin, we can determine that the limit is equal to 0.

Let's consider two paths: the x-axis (y = 0) and the y-axis (x = 0). Along the x-axis, the function simplifies to x³/x² = x. As x approaches 0, the function approaches 0. Along the y-axis, the function simplifies to y²/y² = 1. As y approaches 0, the function remains constant at 1.

Since the function is bounded between x and 1 along these two paths, and both x and 1 approach 0 as (x, y) approaches (0, 0), we can conclude that the limit of (x³ + y²)/(x² + y²) as (x, y) approaches (0, 0) is 0.

In conclusion, by considering the behavior of the function along different paths, we can determine that the limit of (x³ + y²)/(x² + y²) as (x, y) approaches (0, 0) is 0 using the Squeeze Theorem.

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Answer:

13.03

Step-by-step explanation:

Suppose ( x₁ , y₁ ) =  ( − 2 , − 4 )  and  (x₂ , y₂ ) = (5 , 7)

In the formula  :  d = √ [( x₂− x₁ )² + ( y₂ − y₁ )²]

Just replace x₁ by -2

       replace y₁ by -4

       replace x₂ by 5 

       replace y₂ by 7

We get ,

d = √ [( 5− (-2) )² + ( 7 − (-4) )²]

Then

d = √ [(7 )² + ( 11 )²]

d = √ [49 + 121]

d = √ [170]

  ≈ 13.03

The original equation and the orthogonal equation are the same, we can conclude that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves.

To show that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves, we need to take the derivative of the equation and set it equal to -1/b^2, the slope of the orthogonal line.

First, we take the derivative of the equation with respect to x:

2x/a^2 = -2y/b^2 * dy/dx

Simplifying, we get:

dy/dx = -b^2*x/a^2*y

Now, we set this equal to -1/b^2:

-b^2*x/a^2*y = -1/b^2

Cross-multiplying and simplifying, we get:

x/a^2*y = 1/b^2

Finally, we can rearrange this equation to get:

y = b^2*x/a^2

This equation represents the orthogonal family of curves to the original family of conics. Since the original equation and the orthogonal equation are the same, we can conclude that the family of conics with the same focus x^2/a^2+C + y^2/b^2+C = 1 is its own orthogonal family of curves.

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Since last September Patricia has been working at the convenience store down the road. (Option A: has been working).

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

Hence, the correct option is A, i.e., Since last September Patricia has been working at the convenience store down the road. (Option A: has been working).

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In the Histogram the horizontal line (dimension) represents the value of the selected collection plan element. The vertical line (dimension) represents the count or sum of occurrences of the primary collection element on the horizontal line.

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The number of oranges that are expected to weigh more than 4 oz is:

1400 - (1400 × 0.0228)≈ 1368.

The mean weight of the oranges growing in an orchard is 8 oz and standard deviation is 2 oz, the distribution of the weight of oranges can be represented as normal distribution.

From the batch of 1400 oranges, the number of oranges is expected to weigh more than 4 oz can be found using the formula for the Z-score of a given data point.

\(z = (x - μ) / σ\)

Wherez is the Z-score of the given data point x is the data point

μ is the mean weight of the oranges

σ is the standard deviation

Now, let's plug in the given values.

\(z = (4 - 8) / 2= -2\)

The area under the standard normal distribution curve to the left of a Z-score of -2 can be found using the standard normal distribution table. It is 0.0228. This means that 0.0228 of the oranges in the batch are expected to weigh less than 4 oz.

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The probability that a single randomly selected value from a population with a normal distribution, where the mean (μ) is 189.2 and the standard deviation (σ) is 83.2, falls between 195.2 and 214.1 is approximately 0.1632.

To find the probability, we can standardize the values using the z-score formula: z = (x - μ) / σ, where x is the given value, μ is the mean, and σ is the standard deviation.

For 195.2:

z1 = (195.2 - 189.2) / 83.2 = 0.0721

For 214.1:

z2 = (214.1 - 189.2) / 83.2 = 0.2983

Using a standard normal distribution table or a calculator, we can find the area under the curve between these z-scores, which represents the probability:

P(195.2 < x < 214.1) = P(0.0721 < z < 0.2983) ≈ 0.1632

Therefore, the probability that a single randomly selected value falls between 195.2 and 214.1 is approximately 0.1632.

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Complete question is in the image attached below

The mean for the random variable X is 0.8 and The variance for the random variable X is 0.672.

In this case, we have a binomial distribution with n=5 trials and a success probability of p=0.16 for each trial (the probability of corrosion).

The following formula gives the mean or expected value of the binomial distribution:

μ = np

Putting the given values, we get:

μ = 5 × 0.16 = 0.8

Therefore, the mean for the random variable X is 0.8.

The variance of the binomial distribution is given by the formula:

\(\sigma^2\) = np(1-p)

Putting the given values, we get:

\(\sigma^2\) = 5 × 0.16 × (1-0.16) = 0.672

Hence, the variance for the random variable X is 0.672.

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f's x-dependent integral is identical to w; f(x)dx = w

The integral of f with respect to x is equal to w, which is the mathematical translation of the statement "w is the integral of f with respect to distance (x)". This can be mathematically stated as f(x)dx = w, where f(x) is a function of x, dx represents an infinitesimal change in x, and is the integral symbol.

The area under a function's curve, or integral, can be thought of as the accumulation of infinitesimally tiny slices of the function. The integral of f with respect to x in this situation equals w. This indicates that when the function f(x) is integrated with respect to x, w is equal to the sum of all the infinitesimally small slices.

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Answer:

7.20

Step-by-step explanation:

12/5=2.4

2.4 for lb of apples

2.4*3=7.2

Answer:

$7.20 for 3 pounds

Step-by-step explanation:

Answer:

12x - 1

Step-by-step explanation:

Distribute the 2 and 3:

2(3x - 5) + 3(2x + 3)​

(6x - 10) + (6x + 9)

Add like terms:

12x - 1

So, the answer is 12x - 1

Answer:

To find a range of values for the third side when given two lengths, write two inequalities: one inequality that assumes the larger value given is the longest side in the triangle and one inequality that assumes that the third side is the longest side in the triangle. Combine the two inequalities for the final answer.

Step-by-step explanation:

Answer:

To find a range of values for the third side when given two lengths, write two inequalities: one inequality that assumes the larger value given is the longest side in the triangle and one inequality that assumes that the third side is the longest side in the triangle. Combine the two inequalities for the final answer.

Step-by-step explanation:

ex: a triangle has side lengths 3, and 7, find the possible range length for the third side.

Solution: let x be the length of the third side of the triangle

The maximum value:

x<3+7=10                            ______ x<10

The mimimum value:

x>7-3=4                          ________ x>4

so 4<x<10  ( x is between 4 and 10)

Hope that made sense and helped!

It is proved that Point A is situated equal distance from Triangle PQA and RQA.

It is a line that divide an angle or a line in two equal parts.  In the given figure, QA is a bisector as it divides the angle PQR.

Triangles are called congruent when they have equal corresponding sides and equal corresponding angles. As shown in figure, the bisector QA creates two congruent triangle PQA and RQA.

it is given, QA is bisector of angle Q, so point A lies equal distance from P and R. According to the figure, APQ and ARQ are right angle.

As per the rules of congruence theorem, triangle PQA and Triangle RQA are two congruent triangles.

hence, A is the same distance from P and R

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Statement                                                                  Reason

1. QA is the bisector of ∠PQR                                   Given

2. ∠PQA   ≅ ∠RQA                                          Definition of bisector

4. ∠QXA ≅ ∠QYA                                   All right angles are congruent

5. QA ≅ QA                                                                Given

6.△PQA ≅ △RQA                                            AAS Postulate

8. Point A is equidistance                              Definition equidistance

from the side of ∠PQR        

What is right triangle?

A right triangle, also known as a right-angled triangle, right-perpendicular triangle, orthogonal triangle, or formerly rectangle triangle, is a triangle with one right angle, or two perpendicular sides. The foundation of trigonometry is the relationship between the sides and various angles of the right triangle.

Given that point A is lie on the bisector of ∠PQR.

When anything is divided into two equal or congruent portions, usually by a line, it is said to have been bisected in geometry. The line is then referred to as the bisector. Segment bisectors and angle bisectors are the sorts of bisectors that are most frequently taken into consideration.

Therefore QA is the bisector of ∠PQR

Then ∠PQA   ≅ ∠RQA  

Since ∠QXA and ∠QYA are right angle, therefore they are congruent.

∠QXA ≅ ∠QYA

QA ≅ QA

AAS postulate: The triangles are congruent if two angles and the excluded side of one triangle match two angles and the excluded side of another triangle.

According to AAS postulate,

△PQA ≅ △RQA  

Point A is equidistance from ∠PQR.

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The completely factored expression of 12x⁴ + 39x³ + 9x² is 3x²(4x + 1)(x + 3)

The polynomial expression is given as;

12x⁴ + 39x³ + 9x²

Factor out 3x² from the expression

3x²(4x² + 13x + 3)

Expand

3x²(4x² + 12x + x + 3)

Factorize the expression

3x² * 4x(x + 3) + 1(x + 3)

Factor out x + 3

3x²(4x + 1)(x + 3)

Hence, the completely factored expression of 12x⁴ + 39x³ + 9x² is 3x²(4x + 1)(x + 3)

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Step-by-step explanation:

probabilty of open toe=20/340=1/17

Answer:

the slope is 0.

Answer:

Slope is zero

The vectors (1, -1), (1, 2), and (2, 1) are linearly dependent because they can be expressed as linear combinations of each other.

To show that the vectors are linearly dependent, we need to demonstrate that at least one of them can be expressed as a linear combination of the others. In this case, let's express the vector (2, 1) as a linear combination of the other two vectors.

We can write the vector (2, 1) as follows:

(2, 1) = a(1, -1) + b(1, 2)

Expanding the right side, we have:

(2, 1) = (a + b, -a + 2b)

By comparing the corresponding components, we get the following system of equations:

2 = a + b

1 = -a + 2b  

Solving this system of equations, we find that a = 1 and b = 1. Therefore, the vector (2, 1) can be expressed as a linear combination of the vectors (1, -1) and (1, 2), indicating that the three vectors are linearly dependent.

Since we have found a nontrivial solution to the equation, it confirms that the vectors (1, -1), (1, 2), and (2, 1) are linearly dependent.

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Thomas is 49 years old.

What is equation?

Two expressions joined by an equal sign form a mathematical statement known as an equation. An equation is, for instance, 3x - 5 = 16. We can solve this equation and determine that the value of the variable x is 7.

Given:

Huilan is 11 years older than Thomas.

The sum of their ages is 109.

We have to find the Thomas's age in years.

Let x be the Thomas age.

Then the age of Huilan is x + 11.

As the sum of their ages is 109.

⇒ x + (x + 11) = 109

         2x + 11 = 109

               2x = 98

                 x = 49

Hence, Thomas is 49 years old.

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Answer:

The answer would be the second option

Step-by-step explanation:

first option 45.50/2 = 22.75

second option would be 10.75

so the second option is correct

Answer:

vertex = (2, 9 )

Step-by-step explanation:

The vertex is the turning point on the graph

This occurs at (2, 9 )

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 3 , thus

y = - 3x + c ← is the partial equation

To find c substitute (7, 8) into the partial equation

8 = - 21 + c ⇒ c = 8 + 21 = 29

y = - 3x + 29 → A

In the problem depicted, the solution is

The square like shaped is 1

and the blue droplet is 5

The game is solved using the linear equations, to model the linear equation, let the square shaped be x and droplet shaped be y

Using symmetry as depicted in the picture the two sides are equal such that

3x + 6 + y = 14 (left end)

2x + y = 7 (middle)

x + 6 = 7 (right end)

The other side is further divided into two: to have 7 apiece

the left end: x + 6 = 7, x = 1

the middle:

2x + y = 7

substitute x = 1

2 + y = 7

y = 5

check input x = 1 and y = 5 into 3x + 6 + y = 14

3 * 1 + 6 + 5

3 + 6 + 5

14 correct

hence x = 1 and y = 6

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Answer:

Slope is 0

Step-by-step explanation:

First, find the difference in the x and y of each point by subtraction.

8 - (-2) = 10

9 - 9 = 0

Because the y value doesn't change in between these two points, that indicates the slope is 0

Answer:

I don't know sorry

Step-by-step explanation:

The difference quotient for f(x) = 6x - 6x² is 6 - 12x - 6h

The given function is f(x) = 6x - 6x² and we have to find the difference quotient for it. The difference quotient is given by the formula:

f(x + h) - f(x) / h

We are supposed to use this formula for the given function. So, let's substitute the values of f(x + h) and f(x) in the formula.

f(x + h) = 6(x + h) - 6(x + h)²f(x) = 6x - 6x²

So, the difference quotient will be:

f(x + h) - f(x) / h= [6(x + h) - 6(x + h)²] - [6x - 6x²] / h

Now, let's simplify this expression.

[6x + 6h - 6x² - 12hx - 6h²] - [6x - 6x²] / h

= [6x + 6h - 6x² - 12hx - 6h² - 6x + 6x²] / h

= [6h - 12hx - 6h²] / h= 6 - 12x - 6h

Therefore, the difference quotient for f(x) = 6x - 6x² is 6 - 12x - 6h

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Answer:

Yes

Step-by-step explanation:

Billy is 4'7

138 centimeters in feet is 4'5

sp billy is 2 inches over the requirment.

Answer:

21 - 3= 18 so she placed 18 flowers in the vase

Answer:

18

Step-by-step explanation:

21-3 = 18