Solve the problem.A ball is thrown directly upward from the top of a building that is 160 feet high. The function  describes the ball's height above the ground, in feet, after t seconds. Factor the expression for f(t) and write the function in completely factored form. Use the factored form of the function to find 

A. f(t) = -16(t2 + 3t + 5); 528 ft
B. f(t) = 16(t2 + 3t + 5); 33 ft
C. f(t) = -16(t + 2)(t - 5); 96 ft
D. f(t) = 16(t - 2)(t + 5); 288 ft


Answer: C

Mathematics

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Determine whether the given function satisfies a Laplace equation.f(x, y) = e3ysin 3x

A. No B. Yes

Mathematics

Find the indicated set.Let U = Universal set = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {2, 4, 5, 6, 9}, B = {1, 3, 5, 8, 9} and C = {1, 4, 5, 9}.Find  

A. {0, 1, 2, 3, 4, 6, 7, 8} B. {1, 2, 3, 4, 5, 6, 7, 8, 9} C. {5, 9} D. {0, 7}

Mathematics

Solve. = 

A. x = 
B. x = 9
C. x = 19
D. x = 38

Mathematics

The graph of a function f is given. Use the graph to answer the question. Find the numbers, if any, at which f has a local minimum. What are the local maxima?

A. f has a local maximum at x = -2.5 and 5; the local maximum at -2.5 is -3.3; the local maximum at 5 is -2.5 B. f has a local minimum at x = -3.3 and -2.5; the local minimum at -3.3 is -2.5; the local minimum at -2.5 is 5 C. f has a local minimum at x = -2.5 and 5; the local minimum at -2.5 is -3.3; the local minimum at 5 is -2.5 D. f has a local maximum at x = -3.3 and -2.5; the local maximum at -3.3 is -2.5; the local maximum at -2.5 is 5

Mathematics