Suppose that r = 12 cm and h = 18 cm in the right circular cylinder. Find the exact and approximate measures (rounded to two decimal places, using your calculator value of ) for each of the following.

X=y+4 is the answe

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.