Solve the problem.A ball is thrown vertically upward from the top of a building 144 feet tall with an initial velocity of 128 feet per second. The distance s (in feet) of the ball from the ground after t seconds is  After how many seconds does the ball strike the ground?

A. 8 sec
B. 9 sec
C. 145 sec
D. 11 sec


Answer: B

Mathematics

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Find the exact value of the trigonometric function.csc 

A. - 
B. -1
C. - 
D. - 

Mathematics

Find the probability.A student will take a 12-question "true or false" test. If he must guess on every question, what is the probability that he answers 10 questions correctly?

A.
B.
C.
D.

Mathematics

Use the graph to find the horizontal asymptote, if any, of the function.

A. y = -4 B. none C. y = 4 D. y = 0

Mathematics

Simplify.

A. 24 B. 25 C. 288 D. does not exist as a real number

Mathematics