Solve.A rock falls from a tower that is 288 ft high. As it is falling, its height is given by the function 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 17 sec
B. 17.6 sec
C. 5184 sec
D. 4.2 sec
Answer: D
Mathematics
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Find the center and the radius of the sphere that has the given equation.
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Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 3x + 5y = -102x + 4y = -6
A. (5, -1) B. (1, -5) C. (-5, 1) D. (-1, 5)
Mathematics
Perform the division.(x2 - 25) ÷ (x + 5)
A. x - 25 B. x + 25 C. x2 - 5 D. x - 5
Mathematics