Aball is launched from 8 feet off the ground at an initial vertical speed of 64 feet per second. it is aimed across a field at a target also 8 feet off the ground. the height of the ball at time, t, in seconds, is given by the function, h = –16t 2 + 64t + 8. it will take the ball a0 seconds to hit its target.

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

The trigonometric ratios sine and secant are reciprocals of each other

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called