MATHEMATICS
MIDDLE SCHOOL

Which of the following best describes the situation?

This is an example of correlation because one patient is sick and the other is not.

This is an example of causation because both patients need medicine.

This is an example of correlation because both patients are sick at the same time.

This is an example of causation because the patient that took the medication recovered quicker than the patient that did not.

Answer:

Answer:

This is an example of causation because the patient that took the medication recovered quicker than the patient that did not.

Step-by-step explanation:

Correlation is a statistical technique that shows that a relation exists between 2 variables but does not give any explanation about the relationship

Example: Correlation between Air Conditioner sales and sunglasses sold.

As the sales of the air conditioner is increasing so do the sales of sunglasses.

Causation is a statistical technique that shows a relation ship between 2 variable. It emphasizes the fact that any change in the value of one variable will cause a change in the value of another variable.

Answer:

Answer:

Option D.

Step-by-step explanation:

D. This is an example of causation because the patient that took the medication recovered quicker than the patient that did not.

MIDDLE SCHOOL

What is .03 as a percent and degree?

.03 as a percent is 3%...... because you move the decimal to the left two times.

NOt sure about the degree but to figure out the percent you move the decimal over 2 spaces so the answer would be 30%

COLLEGE

What times 0.914 equals to 400?

437.636761 or 437.65 rounded

MIDDLE SCHOOL

27X=189.

What is the value of x?

7 because you do 27/27 and that cancels out and then you do 189/27 and you get 7 as your final answer which is equal to six. Easy peasy!

MIDDLE SCHOOL

a student claims that the equation y=7 is not a linear equation because it does not have the from y=m x+b.do you agree or disagree?why?

That is false.

y=7 is just a simplified way of writing y = 0 x 1 + 7

y=7 is just a simplified way of writing y = 0 x 1 + 7

HIGH SCHOOL

The combined height of one oak tree and one pine tree is 21 meters. The height of 4 oak trees stacked on top of each other is 24 meters taller than one pine tree. How tall is the oak tree and the pine tree

Answer:

Height of an oak tree= 9 meters

Height of a pine tree = 12 meters

Step-by-step explanation:

Given:

The combined height of 1 oak tree and 1 pine tree = 21 meters

Height of 4 oak trees = 24 meters more than 1 pine tree

To find the height of 1 pine tree and height of one oak tree.

Solution:

Let the height of one oak tree be = meters.

Let height of one pine tree = meters.

Combined height can be given as :

-------------[1]

Height of 4 oak trees = 24 meters more than 1 pine tree

The above statement can be given as :

------------[2]

Rearranging equation [2] by subtracting both sides by .

-------------[2]

Adding rearranged equation [2] to [1].

+--------------------

Dividing both sides by 5.

∴

Plugging in in equation [1]

Subtracting both sides by 9.

Height of an oak tree= 9 meters

Height of a pine tree = 12 meters

MIDDLE SCHOOL

Trey found three pieces of wire in his tool drawer. Here are their lengths (in centimeters). 9 , 5.59 , 16.8 What is the total length of the three pieces?

To find the total length we justadd the llength of the vBulletin peices together 9 +5.59 + 16 . 8 = 31.39 The total length is 31.39

MIDDLE SCHOOL

Solve for n .

8 - n = -4

It's not 4 or -4

Answer:

n = 12Step-by-step explanation:

8 - n = -4 subtract 8 from both sides

8 - 8 - n = -4 - 8

-n = -12 change the signs

n = 12

MIDDLE SCHOOL

rectangle A measured by 3 inches. Rectangle B is a scaled copy of rectangle A. Select all of the measures pairs that could be the dimensions of rectangle B. A. 4.5 inches by 1.5 B. 8 inches by 2 inches D. 13.5 inches by 4.5 inches E. 90 inches by 30 inches

In the given rectangle, rectangle A, the length is 9 inches, and the width is 3 inches.

The length is 3 times the width.

Any rectangle in which the length is 3 times the width is similar to rectangle A.

Take each option and multiply the width by 3. If that is the length they tell you, then that rectangle is similar to rectangle A.

Option A.

1.5 in. * 3 = 4.5 in.

You are given length = 4.5 in.

It is similar.

Option B.

Width = 2 in.

2 in. * 3 = 6 in.

Given length is 8 in.

Not similar.

Option D.

Width = 4.5 in.

3 * 4.5 in. = 13.5 in.

Given length = 13.5 in.

Similar

Option E.

Width = 30 in.

3 * 30 in. = 90 in.

Given length = 90 in.

Similar.

The length is 3 times the width.

Any rectangle in which the length is 3 times the width is similar to rectangle A.

Take each option and multiply the width by 3. If that is the length they tell you, then that rectangle is similar to rectangle A.

Option A.

1.5 in. * 3 = 4.5 in.

You are given length = 4.5 in.

It is similar.

Option B.

Width = 2 in.

2 in. * 3 = 6 in.

Given length is 8 in.

Not similar.

Option D.

Width = 4.5 in.

3 * 4.5 in. = 13.5 in.

Given length = 13.5 in.

Similar

Option E.

Width = 30 in.

3 * 30 in. = 90 in.

Given length = 90 in.

Similar.

Answer:

he is correct it is E. I had the same thing and he helped me a lot seeing this. He is correct

HIGH SCHOOL

The formula F=9/5(k-273.15)+32 converts a temperature from kelvin K to degrees Fahrenheit F. a.solve the formula for k

b. convert 180 degrees Fahrenheit(F) into kelvin(K). round your answer to the near test hundredth.

Step One

Subtract 32 from both sides.

F - 32 = 9/5(k - 273.15)

Step Two

Multiply by 5/9 on both sides.

5/9*(F - 32) = 5/9 * 9/5 (k - 273.15)

5/9*(F - 32) = k - 273.15

Step Three.

Add 273.15 to both sides.

5/9*(F - 32) + 273.15 = k

Problem B

F = 180

Solve

5/9*(F - 32) + 273.15 = k

5/9*(180 -32) + 273.15 = k

5/9*148 + 273.15 = k

82.2222 + 273.15 = k

355.37 = k

k = 355.4

Answer :

(a)

(b) The temperature in Kelvin is 355.37 K

Step by step explanation :

The conversion used for the temperature from degree Fahrenheit to Kelvin is:

where,

= temperature in Fahrenheit

= temperature in Kelvin

(a) The formula for kelvin (K) will be:

Thus, the formula will be:

(b) Now convert into Kelvin (K).

Thus, the temperature in Kelvin is 355.37 K