Use the vertex to solve the application problem.An object is launched vertically in the air at 40 feet per second from a platform 50 feet above the ground. The height of the object above the ground (in feet) t seconds after launch is given by 
How long does it take the object to reach its maximum height? What is the object's maximum height?
A. 2.5 sec; 75 ft
B. 1.25 sec; 50 ft
C. 2.5 sec; 50 ft
D. 1.25 sec; 75 ft
Answer: D
Mathematics
You might also like to view...
Solve the equation. 
+ 8 = 15
A. 2, - 5
B. - 2, 5
C. 
, - 
D. No solution
Mathematics
Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The fluctuation in power (in W) in a microlamp:59.82, 59.64, 59.80, 60.01, 59.61
A. 0.161 W B. 0.026 W C. 0.259 W D. 0.322 W
Mathematics
Find the sum or difference. Write the answer in standard form.3i + (-9 - i)
A. 9 - 2i B. -9 + 2i C. 9 - 4i D. -9 + 4i
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Mathematics