Solve the problem. Round your answer to the nearest tenth, when appropriate.A rock falls from a tower that is 98 m high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
A. 4.5 sec
B. 1960 sec
C. 9.6 sec
D. 9.9 sec
Answer: A
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Tell whether the equation determines y to be a function of x.
?
?
A. no B. yes
Expand the number to its natural form.7.164 × 10-5
A. 0.00007164 B. 0.000007164 C. 0.0007164 D. 0.0000007164
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. x4 + 3x3 - 88x2 = 0
A. x = 0, crosses the x-axis; x = -11, crosses the x-axis; x = 8, crosses the x-axis B. x = 0, touches the x-axis and turns around; x = 11, crosses the x-axis; x = -8, crosses the x-axis C. x = 0, touches the x-axis and turns around; x = -11, crosses the x-axis; x = 8, crosses the x-axis D. x = 0, touches the x-axis and turns around; x = 11, touches the x-axis and turns around; x = -8, touches the x-axis and turns around
Solve.
= 
A. 0 B. No solution C. -12 D. 12