Answer:
Step-by-step explanation:
Area:
π 
π 
*Square 2x*
π 
*Divide by π*
*Divide by 4*
*Square root*
*Solve*
x ≈ 3.482
Now take the same equation but replace 2x with 3x
π 
Now replace x with 3.482 and solve for area.
Volume:
π 
*Insert variables*
π 
*Cube 2x*
π 
*Multiply 
on both sides*
π *Divide by π*
*Divide by 8*
*Cube root*
![\sqrt[3]{10.770} = x](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B10.770%7D%20%3D%20x)
*Solve*
x ≈ 2.208
Now take the same equation but replace 2x with 3x
π 
Now replace x with 2.208 and solve for volume.
A perfect square must be hidden within all of those radicands in order to simplify them down to what the answer is.
.
.
. The rules for adding radicals is that the index has to be the same (all of our indexes are 2 since we have square roots), and the radicands have to be the same. In other words, we cannot add the square root of 4 to the square root of 5. They either both have to be 4 or they both have to be 5. So here's what we have thus far:
. We can add
and
to get
. That means as far as our answer goes, A = 72 and B = 4, or (72, 4), choice a.
Answer:
62.4
Step-by-step explanation:
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