Solve the problem.If a ball is thrown upward at 64 feet per second from the top of a building that is 120 feet high, the height of the ball can be modeled by 
feet, where t is the number of seconds after the ball is thrown. After how many seconds does the ball reach its maximum height?
A. 3.8 sec
B. 4 sec
C. 1 sec
D. 2 sec
Answer: D
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Provide an appropriate response.If set A is equivalent to the set of odd natural numbers, then n(A) = ?0.
A. True B. False
Graph the function to find the stated characteristic of the graph.Graph f(t) = - cos (?t + 
) + 3 in 
by 
. State the period.
A. 
B. 2
C. ?
D. 4
Is the algebraic expression a polynomial? If it is, write the polynomial in standard form.4x-1 - 8 + 7x
A. No B. Yes; 7x + 4x-1 - 8
Solve the problem.Two sailboats leave a harbor in the Bahamas at the same time. The first sails at 24 mph in a direction 350°. The second sails at 32 mph in a direction 200°. Assuming that both boats maintain speed and heading, after 3 hours, how far apart are the boats?
A. 162.4 mi B. 129.5 mi C. 116.5 mi D. 113 mi