An object is thrown downward with an initial velocity of 5 ft/sec. The relation between the distance s it travels, and time t is given by the equation s = 5t + 16t2. How long does it take the object to fall 74 feet? (4 pts)

hope it is correct if not i'm srry i tried to

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.