the ratio of the measure of the central angle to the measure of the entire circle is StartFraction 5 Over 2 pi EndFraction.

It’s going to be d. 4x^2-4x-19’

127 millimeters is the answer

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.