Solve the problem.An object is propelled vertically upward from the top of a 32-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2 seconds
B. 3 seconds
C. 0.3 seconds
D. 6.3 seconds
Answer: D
Mathematics
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Perform the indicated operations.(-3x2 + 2) - (-x3 + 6x2 + 10)
A. x3 + 3x2 + 12 B. -2x3 + 6x2 - 8 C. x3 - 9x2 - 8 D. -2x3 + 8x2 - 10
Mathematics
Solve the problem.The time T in seconds for a pendulum of length L feet to make one swing is given by 
How long is a pendulum (to nearest hundredth) if it makes one swing in 1.2 seconds? Use 3.14 for ?.
A. 6.88 ft B. 1.1 ft C. 43.2 ft D. 10.8 ft
Mathematics
Evaluate the algebraic expression for the given value(s).
, given x = 6
A. 6 B. 12 C. 2 D. 3
Mathematics
Find the square root.
A. 2
B. 
C. 
D. 4
Mathematics