Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level α.

n = 40, α = 0.01

r = 0.402

r = ±0.312

r = 0.43

r = ±0.402

well, if its base has a diameter of 12, that means its radius is half that, or 6.

[tex]\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=6\\ V=1086 \end{cases}\implies 1086=\cfrac{\pi (6)^2 h}{3}\implies 3528=36\pi h \\\\\\ \cfrac{3528}{36\pi }=h\implies 31.19\approx h[/tex]

Answer:

3 hope it helps

2

Hope it helps.

Do comment if you have any query.

Answer:

Plane A because it was 27.43 miles away

Step-by-step explanation:

~Kandy~

hope this helped!

brainliest please!

lol, just answered my own question.

Answer:

sorry i'm having an exam and its rlly hard so i'm looking for answers myself

Step-by-step explanation:

...

hope it helps

the answer is

Answer: Answer:  Third option is correct.

Step-by-step explanation: Step-by-step explanation:

Since we have given that

Number of heads = 56

Number of tails = 44

Total number of flips = 100

So, Probability of getting head is given by

Theoretical probability of getting head is given by

There is a difference of

0.54-0.50=0.04 = 4%

Hence, the experimental probability is 4% higher than the theoretical probability.

Therefore, Third option is correct.

Answer:

The experimental probability is 4% lower than the theoretical probability.

Step-by-step explanation:

because i took this before and got it right

Answer:

Step-by-step explanation:

If triangle equilateral, then h = 3 × 4√3 = 12√3

If side of triangle is "x" , then length of the base is

x² - ( [tex]\frac{x}{2}[/tex] )² = ( 4√3 )²

4x² - x² = 192

x² = 64

x = 8

[tex]A_{triangle}[/tex] = 8 × 12√3 = 96√3

Answer:

30

Step-by-step explanation:

You can do 36*100=3600 and do 3600/120. This is a very simple way to get 30 out of 100

Answer: $30

Step-by-step explanation: If she saves $36 when she earns $120, then she saves *amount =36/120 ×100

Amount saved with $100 earning is $30

Answer:

You're going to need more to this question

Step-by-step explanation:

what is the rest of it

0.62% of the adult pandas weight over 250 pounds

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (raw score - mean)  / standard deviation

Given mean of 200 pounds and a standard deviation of 20 pounds.

For x > 250 pounds:

z = (250 - 200) / 20 = 2.5

P(z > 2.5) = 1 - P(z < 2.5) = 1 - 0.9938 = 0.62%

0.62% of the adult pandas weight over 250 pounds

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Answer:

u didnt put the anwsers but its 80% percent now can i have brainliest pls ty

Step-by-step explanation:

The data in the table is an illustration of a quadratic equation, and the quadratic equation that models the data is (d) y = -0.15x² + 2x + 5.5

A quadratic model is represented as:

y = ax² + bx + c

Using the point (x,y) = (0,5.5);

We have:

a(0)² + b(0) + c = 5.5

This gives

c = 5.5

Substitute c = 5.5 in y = ax² + bx + c

y = ax² + bx + 5.5

Using the point (x,y) = (1,7.35);

We have:

a(1)² + b(1) + 5.5 = 7.35

This gives

a + b + 5.5 = 7.35

Subtract 5.5 from both sides

a + b = 1.85

Using the point (x,y) = (2, 8.9);

We have:

a(2)² + b(2) + 5.5 = 8.9

This gives

4a + 2b + 5.5 = 8.9

Subtract 5.5 from both sides

4a + 2b = 3.4

Divide through by 2

2a + b = 1.7

Subtract a + b = 1.85 from 2a + b = 1.7

2a - a + b - b = 1.7 - 1.85

This gives

a = -0.15

Substitute a = -0.15 in 2a + b = 1.7

-2 * 0.15 + b = 1.7

This gives

-0.3 + b = 1.7

Add 0.3 to both sides

b = 2

Substitute a = -0.15 and b = 2 in y = ax² + bx + 5.5

y = -0.15x² + 2x + 5.5

Hence, the quadratic equation that models the data in the table is (d) y = -0.15x² + 2x + 5.5

Read more about quadratic equations at:

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#SPJ1

The percentage of youth that are category 10 to 12 is the quotient of  their frequency to the total frequency

55% of the actors are 10 to 12 years old

From the complete question, we have the following parameters

The percentage of youth in the age category 10 - 12 is then calculated as:

Percentage = Frequency of age category 10 - 12/Total frequency

This gives

Percentage = 22/40

Evaluate the quotient

Percentage = 55%

Hence, 55% of the actors are 10 to 12 years old

Read more about frequency tables at:

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Answer:

x = -0.8

Step-by-step explanation:

-25x - 2 = 18
-25x -2 - 2 = 18 - 2
-25x = 16
-25x/-25 = 16/-25
x = -0.8

Answer:x=4/5

Step-by-step explanation: First you add two to both sides to cancel out the -2.Next you simplify and add the numbers.Finally, you divide both sides and simplify.

Answer:

I got x= 57 degree

Step-by-step explanation:

Steps in the photo-

Answer:

57 degree

Step-by-step explanation:

Like what he said.

[tex]\huge\color{pink}\boxed{\colorbox{Black}{♔︎Answer♔︎}}[/tex]

C

Answer: C. The interquartile range of the distances for the bus drivers is 5 miles less than the interquartile range of the distances for the teachers.

Answer:

C.

Step-by-step explanation:

Hope this helped!

Answer:

325 or 325/1

Step-by-step explanation:

The formula for slope is:

y1 - y2/x1 - x2

Plugging the numbers in gives you:

40 - 690/0-2

Do subtraction first:

-650/-2

Two negatives make a positive and simplifying the fraction gives you:

325 or 325/1

Whichever makes you happier

(Also, remember that slope is rise/run, which is why it is y/x not the other way around(When graphing you go left/right then up/down))

Hope this helps you :)

Answer:

.5357

Step-by-step explanation:

Follow PEMDAS

Multiplication (M) comes before division (D)

Therefore, solve the multiplication expressions first:

2 * 3 * 5 = 30

and

7 * 8 = 56

Now Division:

30 / 56 = .5357

Answer:

Step-by-step explanation:

If there is only ONE output for each INPUT it can be a function

From top

Y   N  Y Y N Y

b) look at the second one  

      put in 30   days   out put = april jun aug nov    one input 4 outputs

          so it is not a function

From the calculations, the number of whole trees that can be sold at $75,000 is 21 trees.

Density is defined a the mass per unit volume. Now we have the following;

Diameter = 50 cm or 0.5 m

height = 10 meters

volume = ?

Density of the cylinder = 380 Kg/m^3

Now;

We can get the volume from;

V = πr^2h

V = 3.142 * (0.5/2)^2 * 10

V = 1.96m^3

From;

D = m/V

m = DV

m = 1.96m^3 * 380 Kg/m^3

m = 744.8 Kg

If 1 Kg of wood is sold at $4. 75

744.8 Kg is sold at 744.8 Kg  *  $4. 75/  1 Kg

= $3537.8

Number of whole trees to be sold at $75,000=  $75,000/$3537.8

= 21 trees

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The best description of the resulting three-dimensional figure when the considered figure is revolved is: A cylinder with height 24 cm.

When a figure is revolved around some fixed axis, the whole three dimensional solid formed from the area that it swaps out is called solid of revolution.

Since no image is specified, we will work on the image attached below.

We can visualize and imagine that the horizontal line is still and just rotating on its place. The rectangle will revolve around, and therefore will swap out a cylindrical shape.

Since the length of the rectangle is 24 cm, and it is rotated on its length, so that will serve as height of the formed cylinder.

Thus, the best description of the resulting three-dimensional figure when the considered figure is revolved is: A cylinder with height 24 cm.

Learn more about solid of revolution here:

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Answer: B. The ball is less likely to be a racquetball than a golf ball.

Step-by-step explanation:

Imagine a bin. You are storing different sports balls in the bin. You put 20 baseballs, 24 golf balls, 9 tennis balls, and 6 racquetballs in the bin. Can you name which ball is most likely to be chosen if you grabbed one out at random? The answer is the golf ball.

This is because there are more golf balls than any other type of ball. For example, there are 24 golf balls, yet there are only 20 baseballs. This means that you are more likely to pick a golf ball.

Remember that there are 6 racquetballs while there are 24 golf balls. There are 4 times more golf balls than racquetballs in the bin. This means that you are 4 times more likely to pick a golf ball than a racquetball when you take a ball out of the bin at random.

Since there are many more golf balls than racquetballs, you are more likely to grab a golf ball than a racquetball. This means that the ball is less likely to be a racquetball than a golf ball.

(If you are confused, imagine freshly baked cookies. You cooked 12 cookies.

8 cookies are chocolate chip

3 cookies are oatmeal raisin

1 cookie is peanut butter.

If you grab a cookie at random, with your eyes closed, you are most likely to pick the chocolate chip cookies. This is because there are more chocolate chip cookies than oatmeal raisin cookies or peanut butter cookies)

went at 3:45 PM

left at 7:45 PM

the duration she was at the library.

( to find the duration just find the difference of the time she left and she went.

= 4 hours

so, she was at the library for 4 hours.

#b

Attached

#a

So

General equation of parabola

let's note the changes

Answer:

Transformation of f(x) to g(x):

(see attachment for graphs)

Step-by-step explanation:

Translations

For a > 0

[tex]f(x+a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units left}[/tex]

[tex]f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]

[tex]f(x)+a \implies f(x) \: \textsf{translated}\:a\:\textsf{units up}[/tex]

[tex]f(x)-a \implies f(x) \: \textsf{translated}\:a\:\textsf{units down}[/tex]

[tex]y=a\!\:f(x) \implies f(x) \: \textsf{stretched parallel to the y-axis (vertically) by a factor of}\:a[/tex]

[tex]y=f(ax) \implies f(x) \: \textsf{stretched parallel to the x-axis (horizontally) by a factor of} \: \dfrac{1}{a}[/tex]

Parent function:

[tex]f(x)=x^2[/tex]

Translated 2 units to the right:

[tex]\implies f(x-2)=(x-2)^2[/tex]

Stretched vertically by a factor of 2:

[tex]\implies 2f(x-2)=2(x-2)^2[/tex]

Translated 1 unit up:

[tex]\implies 2f(x-2)+1=2(x-2)^2+1[/tex]

Therefore, the transformation of f(x) to g(x) is:

Learn more about translations here:

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The correct options are interest, principal, increase.

According to the calculator, by year 10, the majority of demarco and Tanya’s payments will go toward the. by year 20, the majority of demarco and tanya’s payments will go toward the.

over time, the amount paid toward the principal will.

1. interest

Interest is a fee paid for borrowing money or other assets

2. principal

3. increase

Therefore the correct options are interest,principal,increase

To learn more about the amount paid visit:

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According to the calculator, by year 10, the majority of Demarco and Tanya’s payment will go toward the

✔ interest

.

By year 20, the majority of Demarco and Tanya’s payment will go toward the

✔ principal

.

Over time, the amount paid toward the principal will

✔ increase

.