Solve the problem.A rock falls from a tower that is 400 ft high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 10,000 s
B. 20 s
C. 5 s
D. 19.6 s
Answer: C
Mathematics
You might also like to view...
Find the perimeter.
A. 65 yd B. 44 yd C. 242 yd D. 66 yd
Mathematics
Add:
ÚÄ ÚÄÄÄ Add: û9 + û-25 a. 5 + j3 b. 3 + 5 c. 3 - 5 d. 5 - 3 e. 3 + j5
Mathematics
Provide an appropriate response.
A fisherman wants to know the distance across a river. He sights a tree that he calls point A, and then walks down the river 40 feet at a ninety-degree angle. He then sights the same tree (point A) at an angle of 47°. How wide is the river? 
A. 27 ft B. 37 ft C. 43 ft D. 29 ft
Mathematics
Use synthetic division to find the quotient and remainder.(x3 - 5) ÷ (x - 1)
A. x2 - x - 1
B. x2 + x + 1 + 
C. x2 + x + 1 + 
D. x3 - x2 - x - 1
Mathematics