5. A baseball is hit by a batter. The following function describes the height of the baseball as a function of time (t seconds after the ball was struck):
h--16t^2 + 48+ 2
How many seconds after the ball was struck did it reach a maximum height?
a. 1 sec
b. 1.5 sec
o. 2 sec
d. 2.5 sec
Need help ASAP please

Abusiness plan is centered around a circular area of distribution. the plan calls for the radius of the distribution to increase 50 miles per year. the investors have asked that the plan include a reference to the area of distribution based on the number of years in business. these functions model this plan: radius in y years: r(y) = 50y total area: a(r) = πr2; r in miles what is a(r( the total area in y years? a(r(y)) = 50πy2 a(r(y)) = 2,500πy2 a(r(y)) = 50πr2 a(r(y)) = 2,500πr2