MATHEMATICS MIDDLE SCHOOL

Which expression is equivalent to 64 − 9x2?(32)2 − (3x)2
(32)2 + (−3x)2
(8)2 − (3x)2
(8)2 + (−3x)2

Answers

Answer 1
Answer:

Answer: Third option.

Step-by-step explanation:

By definition, the number 64 and the number 9 are perfect squares.

A perfect square it that number obtained by squaring a whole number.

In this case, 64 is obtained by squaring the number 8 and the number 9 is obtained by the squaring the number 3. Then:

8^2=64\n3^2=9

Therefore, you can rewrite the expression 64-9x^2 as following:

(8)^2-(3x)^2

This matches with the third option.
Answer 2
Answer: ANSWER

64 - 9 {x}^(2) = {8}^(2) -( {3x)}^(2)

EXPLANATION
The given expression is

64 - 9 {x}^(2)

Rewrite to get:

{8}^(2) - {3}^(2) {x}^(2)

Recall that

{a}^(n) {b}^(n) = {(ab)}^(n)
We apply this property of exponents to the second term.

This gives us

64 - 9 {x}^(2) = {8}^(2) -( {3x)}^(2)

The third choice is correct.

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Answers

#9).    The volume of a sphere is          (4/3) (pi) (radius)³ .    

You have a small sphere inside of a larger sphere.
The radius of the small sphere inside is 6mm.
The radius of the large sphere outside is 9mm.
They want to know the volume of the SHELL . . .
that's:

 (volume of the big sphere) minus (volume of the small inside sphere).


#10).  Here's where it all comes together !

A). The volume of a cylinder is            (pi) (radius)² (height) .

B). The volume of a sphere is             (4/3) (pi) (radius)³ .

C). The volume of a cone is                (1/3) (pi) (radius)² (height) . 

The question gives you all the numbers.  All  you have to do is
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You can do it !

Keira has 750 square inches of wrapping paper. Her package is in the shape of a right rectangular prism that is 15 inches long 12 inches wide and 8 inches high. Does she have enough paper to cover her package? Explain your reasoning. 2: Sam and alana both have prisms with Heights of 20 inches. Sam's base is a right triangle with legs that are 3 inches long and 4 inches long. Alana's base is a rectangle that is 3 inches by 4 inches. Which prism has the greater volume?

Answers

For Number 2, Alana has the prism with the greater volume.
Though they both share the same dimensions, height of 20, length and width of 3 and 4, do NOT forget that for a triangle, you have to divide the result by half, thus making Sam's triangle of less volume.

For Number 1, the answer is no. She only has 750 square inches of wrapping paper while the SA ( surface area/ area of the top of a prism ) comes to 792 inches.

You are wrapping a gift with the dimensions shown below. What is the least amount of wrapping paper you need?

Answers

The answer is 5 hope that helps

Answer:

5

Step-by-step explanation:

About 60.7% of eligible voters voted in the election. What decimal is equivalent to 60.7%?

Answers

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What are the coordinates of the outlier?A.

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B.

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C.

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D.

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Answers

It should be D because they are odd ball numbers

Will u b my friend
WILL GIVE BRAINLIEST FOR YES

Answers

Answer:

I'm down for a new friend

Step-by-step explanation:

sent the request

ᵤᵤ ᵧₑₛ

ᵘʳ ᵃⁿˢʷᵉʳ ʷᶦˡˡ ᵖʳᵒᵇᵃᵇˡʸ ᵍᵉᵗ ᵈᵉˡᵉᵗᵉᵈ ᵗʰᵒ
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