Select the appropriate descriptions of the correlation coefficient (r).

a. r describes the clustering of the points around a line, relative to the SDs.
b. r says how the average value of y depends on x.
c. r determines the accuracy of the regression predictions, through the formula for r.m.s. error.
d. All of the above are accurate descriptions of the uses of r.

Answer:

299.88 mi. !!!!!

you just multiple all of them together to get the area!!!

Answer:

38%

Step-by-step explanation:

First determine her savings

560-347.49

212.51

Then divide by the total amount

212.51/560

.379482143

Change to percent form

37.948%

Answer:

38%

Step-by-step explanation:

[tex]560.00-347.49=212.51\\212.51\div560.00==38[/tex]

Answer:

34.88

Step-by-step explanation:

I took the test

The distance between the building and the ladder is 34.88 foot, the correct option is B.

A triangle in which one of the angle measure is equal to 90 degree is called a right triangle.

The ladder forms a right triangle with the building and the ground,

The length of the triangle is 40 foot

The angle made by the ladder is 29.32 degree

By using Trigonometric Ratios

cos 29.32 = Base /  Hypotenuse

cos 29.32 = Base / 40

Base is the distance between the building and the ladder.

Base = 34.88 foot

To know more about Right Triangle

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Let the missing number be x.

=> x + 44587 = 65000

=> x = 65000 - 44587

= 20413

Ans.= The missing number will be 20413.

Hope this answer helps you..

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Select it as the BRAINLIEST..

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Explanation:

As the graph shows, three of the four points are on the same line. That line being y = 5x. This line has slope 5 and y intercept 0.

The point not fitting this pattern is the point (5,15), so that is the final answer.

For the other three points, note that the jump from x to y coordinate is "times 5". For example, y = 5x = 5*2 = 10 for point A. In contrast, point D has a jump of "times 3" when going from x to y.

--------------

Alternatively, you can divide each y coordinate by its corresponding x coordinate.

All results are 5 so far. Choice D doesn't follow the trend and instead has y/x = 15/5 = 3. This is another way to show that choice D is the answer.

Answer:

D

Step-by-step explanation:

Answer:

(4;-1)

Step-by-step explanation:

A(-4;2)

B(-2;-1)

C(1;1)

D(-4;-1)

Answer:

-1;4

Step-by-step explanation:

Answer:

a = 11

b = -5

c = 25

Step-by-step explanation:

a.

6 + 4x = 50

50 - 6 = 44

4x = 44

x = 11

b.

(x+9) * -2 = -8

(x+9) = 4

x = -5

c.

2(37.5) + 2(x) = 125

75 + 2x = 125

125 - 75 = 2x

50 = 2x

x = 25

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:

16×14 = -9×(-8) = -13×7

Falso

Step-by-step explanation:

Answer:

Step-by-step explanation:

If two triangles have two congruent sides and a congruent non included angle, then triangles are not necessarilly congruent.

Answer:

150°

Step-by-step explanation:

Sum of all angles in a hexagon = 720°

90° + 120° + 150° + 145° + 65 ° = 670°

720° - 570° = t

t = 150°

If my answer is incorrect, pls correct me!

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Answer; Down

Step-by-step explanation:The graph of the squaring function has the shape of a parabola that opens up. Its vertex is at (0,0). The graph of F(x) = (1/2)x^2 has the same shape, but is compressed vertically by a factor of (1/2).

Option C

Customers will think she is very busy

A messy desk indicates that the person is very busy.

Must click thanks and mark brainliest

Step-by-step explanation:

Find three consecutive odd integers such that the sum of the last two is 15 less than 5 times the first.

let the consecutive odd integers are :- x , x + 2 and x + 4.

According to question :-

the sum of the last two is 15 less than 5 times the first.

It means that

the sum of ( x + 2 ) and ( x + 4 ) is 15 less than 5 times the x .

( x + 2 ) + ( x + 4 ) = 5x - 15

x + 2 + x + 4 = 5x - 15

2x + 6 = 5x - 15

6 + 15 = 5x + 2x

21 = 7x

or ;

7x = 21

x = 21 / 7

x = 3

So, the consecutive odd numbers are :-

x = 3

x + 2 = 3 + 2 = 5

x + 4 = 3 + 4 = 7

=> 3 , 5 and 7

hope this helps you

Answer:

a= $10.00

Step-by-step explanation:

It's very simple. Move /8 to the other side of the equation. It should give you $1.25 x 8. Solve the multiplication and you should get $10.00.

If I didn't make my explanation clear enough, please comment. I sometimes don't even explain myself very well.

Answer:

a = 10

Step-by-step explanation:

a/8 = 1.25

multiply both sides by 8 to isolate a.

(8)(a/8) = 1.25(8)

which gives you

a = 1.25(8)

which simplifies to

a = 10

Answer:

the first term is -4

the difference is 3.

*notice how each term increases by 3:

-4 + 3 = -1

-1 + 3 = 2

2 + 3 = 5

Step-by-step explanation:

Answer:

-16

Step-by-step explanation:

-5-(3^2+2)

Parentheses first

-5-(9+2)

-5-(11)

Subtract

-16

Answer:

The choose C. w–2=4

I hope I helped you^_^

Answer: C

Step-by-step explanation:

9514 1404 393

Answer:

  x = (√6)/10^0.7 ≈ 0.488737

Step-by-step explanation:

It can work reasonably well to take antilogs first.

  [tex]\log(6)-2\log(x)=1.4\\\\\dfrac{6}{x^2}=10^{1.4}\\\\\dfrac{6}{10^{1.4}}=x^2\\\\x=\dfrac{\sqrt{6}}{10^{0.7}}\approx0.488737[/tex]

Answer:

x=7

Step-by-step explanation:

AB=BC[ because two sides of isosceles triangles are equal  ]

or, 2x+9=5x-12

or,9+12=5x-2x

or,21=3x

or,x= 21/3

therefore, x=3

Answer:

18 yards

Step-by-step explanation:

54/3 = 18

3 feet = 1 yard

Answer:

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

x<15

There is an open circle at 15 and the line goes to the left

Answer:

The unknown is 100

Step-by-step explanation:

A straight line is 180 degrees

We have two angles x, and 80

x+80 = 180

x = 180-80

x= 100

Answer:

AA

Step-by-step explanation:

See In Triangle ABC and Triangle STU

[tex]\because\begin{cases}\sf \angle A=\angle S=90° \\ \sf \angle B=\angle T=31°\end{cases}[/tex]

Hence

[tex]\sf \Delta ABC~\Delta STU(Angle-Angle)[/tex]

By AA similarity  triangle ABC is similar to triangle SUT. Therefore, option A is the correct answer.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.

In the given triangle ABC, ∠C=180°-90°-31°

∠C=59°

In the given triangle SUT, ∠U=180°-90°-31°

∠U=59°

Here, ∠B=∠T (Given)

∠C=∠U (Obtained using angle sum property of a triangle)

So, by AA similarity ΔABC is similar to ΔSUT.

Therefore, option A is the correct answer.

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Answer:

8113/1000

Step-by-step explanation:

Answer:

18 divided by nine is two. so for every one table spoon of oil there's two table spoons of vinegar. Please give brainliest

Answer:

2

Step-by-step explanation:

Make a ratio:

Oil : Vinegar

9 : 18

1 : 2

For each tablespoon of oil, 2 tablespoons of vinegar is needed.

Hope this helped.

First concert mixed fractions to normal Form

[tex]\\ \sf\longmapsto 1\dfrac{1}{4}=\dfrac{5}{4}[/tex]

[tex]\\ \sf\longmapsto 1\dfrac{3}{4}=\dfrac{7}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{3}{4}-\dfrac{1}{4}=\dfrac{5}{4}-\dfrac{3}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{3-1}{4}=\dfrac{5-3}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{2}{4}=\dfrac{2}{4}[/tex]

Hence it's true

Answer: True

Explanation:

1/4, 3/4, 1 1/4, 1 3/4

1 1/4 = 5/4

1 3/4 = 7/4

1/4, 3/4, 5/4, 7/4

= 0.25, 0.75, 1.25 , 1.75

This is arithmetic

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Answer:

B

Step-by-step explanation:

Volume of the sphere = (4/3)*pi*6^3=288*pi

Answer:

288 pi units^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

V = 4/3 pi (6)^3

V = 4/3 pi (216)

V = 288 pi units^3