Find the volume of a cone with a base circumference of 13pi in. and a height 4 in. less than twice the radius. Give your answer both in terms of pi and rounded to the nearest tenth.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Dis the correct answer