Solve the problem.Adam and David were both driving east on the same highway. At 3:00 P.M., Adam, traveling at 55 miles per hour, was 20 miles east of David. A little later, David, traveling at 65 miles per hour, passed Adam. At what time did David pass Adam?
A. 5:30 P.M.
B. 9:00 P.M.
C. 7:00 P.M.
D. 5:00 P.M.
Answer: D
Mathematics
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Solve the problem.Fireworks are launched into the air. The quadratic function 
models the fireworks' height, y, in feet, x seconds after they are launched. When should the fireworks explode so that they go off at the greatest height? What is that height? (Round answers the nearest hundredth.)
A. -6.22 sec, 612.77 ft B. 6.22 sec, 624.77 ft C. 6 sec, 199 ft D. 1104 sec, 6 ft
Mathematics
Find the limit.
(1 + x6)1/x
A. ? B. 1 C. 6 D. 0
Mathematics
Solve the linear inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.
- 
? 
+ 1
A. 
B. 
C. 
D. 
Mathematics
Find the x-intercepts of the graph of the equation.y = 
+ 
+ 1
A. - 
B. 5
C. 0
D. No x-intercepts
Mathematics