Solve.John drops a ball from the top of a 256 foot building. The height, h, of the ball in feet t seconds after being dropped is given by h = -16t2 + 256. When will the ball hit the ground? (Hint: The height of the ball when it hits the ground will be 0.)
A. The ball will hit the ground when t = 4 sec.
B. The ball will hit the ground when t = 17 sec.
C. The ball will hit the ground when t = 16 sec.
D. The ball will hit the ground when t = 64 sec.
Answer: A
Mathematics
You might also like to view...
Evaluate the expression.3-2
A. -9
B. 9
C. 
D. 
Mathematics
Use Euler's formula to answer the question.A polyhedra has 36 edges and 20 faces. How many vertices does it have?
A. 18 B. 54 C. 15 D. 56
Mathematics
Find an expression for the nth term of the arithmetic sequence.4, 10, 16, 22, 28, . . .
A. an = 6n - 1 B. an = 4(6)n-1 C. an = 2n - 6 D. an = 6n - 2
Mathematics
Translate each graph to an inequality using the variable x.
A. x < -4.7 B. x ? -4.7 C. x > -4.7 D. x ? -4.7
Mathematics