Solve the application and answer with a complete sentence.A ball is dropped from a height of 1752 feet. The ball's height above the ground after x seconds is given by 
How high above the ground was the ball 9 seconds after falling?
A. The ball was 1608 feet above the ground.
B. The ball was 456 feet above the ground.
C. The ball was 1464 feet above the ground.
D. The ball was 1671 feet above the ground.
Answer: B
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Solve the problem.The total solar radiation H (in W/m2) on a particular surface during an average clear day in one U.S. city is given by 
where t is the number of hours from noon. Find a general expression which can be used to determine how fast the rate of change of solar radiation on the surface is changing at any given time (ie find d2H/dt2).
A. 
B. 
C. 
D. 
Find f(x) at the indicated value of x.f(x) = -18x - 16, x = 0
A. -34 B. -16 C. -18 D. 0
Solve. Write a mixed numeral for the answer.A test of five light bulbs showed that they burned for the following lengths of time (in days): 17
, 19
, 20
, 21, and 18
. For how many days, on average did the light bulbs burns?
A. 19
days
B. 19
days
C. 19
days
D. 19
days
Solve.7.3 - 1.3(x + 1.7) = 8 - 2(x + 1)
A. 3.3 B. 1.3 C. 7.3 D. 5.3