A) you cannot combined square roots if the radicands aren't the same.
Its like variables. You can only add like terms. IE You cannot add 2x +3y.
Its the only rule that applies to the problem.
The answer is as follows:
P = 4(9) = 36
10% is the fraction which would be 1/10
Step-by-step explanation:
Louise calculated the height of a cylinder that has a volume of 486 pi cubic centimetres and a radius of 9 centimetres.
The formula for the volume of cylinder is :
V = B × h
B is area of base of cylinder

i.e.

Substituting given values,

will cancel out from both sides.

She forgets to cancel down
from both sides. So, she get height as
. So, in the
should have canceled, making the correct answer 6 cm.