Solve the problem.A person standing close to the edge on top of a 208-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 6.1 sec
B. 2 sec
C. 1.5 sec
D. 272 sec
Answer: B
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Answer the question.Anna goes to a frozen yogurt shop. She can choose from any of the following toppings: peanuts, caramel sauce, butterscotch chips, strawberries, and cookie dough bits. How many different variations of yogurt and toppings can be made?
A. 32 B. 16 C. 64 D. 6
Evaluate the integral.
A. 2e2t - t + ln 
+ C
B. 2e2t + t - 
ln 
+ C
C. e2t + ln 
- 
ln 
+ C
D. e2t + t - 
ln 
+ C
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = 
, g(x) = x
A. Yes, yes B. No, no C. Yes, no D. No, yes
Solve.A water storage tank is in the shape of a cone with the pointed end down. If the radius is 28 feet and the depth of the tank is 21 feet, find the volume of the tank in cubic feet. Use 
for ?.
A. 616 cu ft B. 51,744 cu ft C. 12,936 cu ft D. 17,248 cu ft