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Vlad [161]
3 years ago
10

Which expression gives the volume of a sphere with radius 7?

Mathematics
2 answers:
masha68 [24]3 years ago
9 0
A. is your answer 

Hope this helps! :)
leva [86]3 years ago
7 0

Answer:  The correct expression is (A) \dfrac{4}{3}\pi(7)^3.

Step-by-step explanation:  We are given to select the correct expression that gives the volume of a sphere with radius 7 units.

We know that

the VOLUME of a sphere with radius 'r' units is given by

V=\dfrac{4}{3}\pi r^3.

Here, the radius of the given sphere is

r = 7 units.

Therefore, the volume of the sphere will be

V=\dfrac{4}{3}\pi r^3\\\\\\\Rightarrow V=\dfrac{4}{3}\pi (7)^3.

Thus, the required expression is \dfrac{4}{3}\pi(7)^3.

Option (A) is correct.

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If you want solve:

y = -2x - 3, y = 3x + 2

-2x - 3 = 3x + 2     |+3

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-5x = 5     |:(-5)

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Put the value of x to the first equation:

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Answer:

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2 years ago
Nils is 6 feet tall and he casts a 24 foot shadow. He sees the shadow of a tree next to him and measures it to find the shadow i
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Slove 3/4(5x-3)+8=17. Show your work​
Vlada [557]
So first you would simplify 3/4(5x-3) to 3(5x-3)/4
So it would be 3(5x-3)/4+8=17
2. Subtract 8 from both sides
3(5x-3)/4=17-8
3. Then simplify 17-8 to 9
3(5x-3)/4=9
4. Multiply both sides by 4
3(5x-3)=9x4
5. Simplify 9x4 to 36
3(5x-3)=36
6. Divide both sides by 3
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Simplify 15/5 to 3
X=3
So your answer is x=3
3 0
2 years ago
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