Okay so I'm trying to find the volume of a sphere with the radius of 3/4k. When I cube 3/4 do I only cube the top number?

Answers

Answer 1

Answer: No, you cube all of the numerator and denominator. This is because when you cube anything you do the number multiplied by the number 3 times. So you do the same with fractions.
$(3)/(4) * (3)/(4) * (3)/(4) = (3)/(4) ^(3)$

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Simplify completely the quantity 3 times x to the 4th power plus 5 times x to the 2nd power plus 2 times x all over x.the quantity 3 times x to the third power plus 5 times x plus 2 all over x 3x3 + 5x + 2 3x2 + 5x2 + 2x 3x5 + 5x3 + 2x2

Which equation matches the sentence?Column A Column B
1.
Three less than 9 times a number is 21.
2.
The sum of 3 times a number and 9 is 21.
3.
The difference of 9 times a number and 3 is 21.
4.
Nine less than 3 times a number is 21.
A.
3n + 9 = 21
B.
9n – 3 = 21
C.
3n – 9 = 21

Answers

Hello,

1: 9n-3=21 ==>B

2: 3n+9=21 ==>A

3: 9n-3=21 ==>B

4: 3n-9=21 ==>C

I wish to have understood all those sentences.

Dylan got his math test back and saw a -12 1/2 points on the top of his math test. The grade was 100% because he earned extra credit points. How much extra credit did Dylan receive on his math test?

Answers

Since he got 100 percent, that means he didn't lose any points overall on his test. Since it said he lost 12 1/2 points, Dylan got 12 1/2 points back.

The lateral area of a cube is 36 square inches. How long is each edge?

Answers

The length of the edge of the given cube that has a lateral area of 36 square inches is: 3 inches.

What is the Lateral Area of a Cube?

Lateral area of a cube = 4a², wherea is the length of each edge of the cube.

Given the parameters:

Lateral area = 36 square inches
Length of each edge = a = ?

4a² = 36

a² = 36/4

a² = 9

a = 3 inches.

Length of each edge of the cube = 3 inches.

Learn more about lateral area of cube on:

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Cubes have three square sides. The area of one side is the edge length squared:
36 = L^2
L = sqrt(36) = 6
The volume of a cube is edge length cubed:
V = L^3 = 216 cubic inches

I need help on this question

Answers

thats easy and the cross section is a trapezoid

That's a pentagon, it has five sides.

(x+2) (x+3) what is the answer

Answers

the answer is x+5 that is your answer

That is your answer x+5

Sand masting (H). The sailboat named Sand Bug has a tall mast. The backstay (the heavy steel cable that attaches the top of the mast to the back, or stern, of the sailboat) is made of 130 feet of cable. The base of the mast is
located 50 feet from the stern of the boat. How tall is the mast?

Answers

$x^(2) +50^(2)=130^(2)\n x^(2) +2500=16900\n x^(2) =14400\nx=120$
120 feet

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Rewrite 5/2 as a mixed number.

A cell phone manufacturer chose 200 people at random and asked them whether they would purchase the newest model for $300. The manufacturer repeated this survey using the same method three more times.Do any of the surveys appear to be biased? Would purchase new model for $300? Survey 1 2 3 4 Yes 127 131 128 133 No 73 69 72 66 A. Yes, because the results from Survey 1 differ the most from the other surveys’ results. B. Yes, because the results from Survey 4 differ the most from the other surveys’ results. C. No, because the sampling methods are all different but have about the same results. D. No, because all four surveys have about the same number of people saying “yes” and about the same number of people saying “no.”