Solve the problem.Consider the quadratic model h(t) = -16t2 + 40t + 50 for the height (in feet), h, of an object t seconds after the object has been projected straight up into the air. Find the maximum height attained by the object. How much time does it take to fall back to the ground? Assume that it takes the same time for going up and coming down.
A. maximum height = 75 ft; time to reach ground = 2.5 seconds
B. maximum height = 50 ft; time to reach ground = 2.5 seconds
C. maximum height = 75 ft; time to reach ground = 1.25 seconds
D. maximum height = 50 ft; time to reach ground = 1.25 seconds
Answer: A
You might also like to view...
Solve.The equation of a line is y = - 
x - 6. What is the slope of a line parallel to it?
A. - 
B. -6
C. - 
D. 
Perform the indicated operation.
- 
A. 1
B. 
C. 
D. 0
Simplify the expression. Assume that all variables are positive when they appear.10
? 11
A. 110
B. 110
? 
C. 110
D. 21
Find the vertices and the endpoints of the minor axis of the ellipse.
A. Vertices 
; endpoints of the minor axis: 
B. Vertices 
; endpoints of the minor axis: 
C. Vertices 
; endpoints of the minor axis: 
D. Vertices 
; endpoints of the minor axis: 
E. Vertices 
; endpoints of the minor axis: 