Solve the problem.A rock falls from a tower that is 448 feet high. As it is falling, its height is given by the formula 
How many seconds (in tenths) will it take for the rock to hit the ground (h = 0)?
A. 20.8 sec
B. 12,544 sec
C. 5.3 sec
D. 21.2 sec
Answer: C
Mathematics
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Evaluate the expression.P(9, 1)
A. 362,880 B. 1 C. 40,320 D. 9
Mathematics
Provide an appropriate response.Perform the indicated operation. Express as an ordinary number. 0.487 ? 102
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the equation for solutions in the interval [0, 2?).sec 
= cos 
A. 
B. 
C. 
D. {0}
Mathematics
Find the indicated function value.f(x) = 4x2 - 5, g(x) = 3x2 - 2Find (f + g)(5).
A. 168 B. 22 C. 172 D. 108
Mathematics