Solve the problem.A ball is thrown downward with an initial velocity of 28 meters per second from a cliff that is 
high. The height of the ball is given by the quadratic equation 
where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 
from the ground. Round your answer to the nearest tenth of a second.
A. 1.1 seconds
B. 2.2 seconds
C. 1.2 seconds
D. 1.3 seconds
Answer: C
Mathematics
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = x3 - 4x
A. 
B. 
C. 
D. 
Mathematics
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.10x2 + 21x + 9
A. (10x + 3)(x + 3) B. (2x + 3)(5x + 3) C. (2x - 3)(5x - 3) D. Prime
Mathematics
Use synthetic division to divide f(x) by x - c, and then write f(x) in the form f(x) = (x - c)q(x) + r.f(x) = x3 - x2 + 3; x + 2
A. (x + 2)(x2 - 3x + 6) + 2 B. (x + 2)(x2 - 3x + 6) - 9 C. (x + 2)(x2 + x + 2) - 9 D. (x + 2)(3x2 - 4x + 2) + 0
Mathematics
Find the indicated term of the geometric sequence.a9 when a1 = 2000 and r = 
.
A. 
B. 
C. 
D. 
Mathematics