Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 23,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 1403 mi
B. 185.0 mi
C. 14,030 mi
D. 167.5 mi
Answer: B
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Write the first four terms of the sequence.an = -3
A. a1 = -3, a2 = -3, a3 = -3, a4 = -3 B. a1 = -3, a2 = 6, a3 = -9, a4 = 12 C. a1 = -3, a2 = -6, a3 = -9, a4 = -12 D. a1 = 3, a2 = -3, a3 = 3, a4 = -3
Solve the equation.
?
?
A. 
B. 
C. 
D. 
E. no solution
Solve the problem.If a rocket is propelled upward from ground level, its height in meters after t seconds is given by 
During what interval of time will the rocket be higher than 294 m?
A. 6 < t < 10 B. 5 < t < 6 C. 0 < t < 5 D. 10 < t < 11
Use the position function 
to find the velocity in feet/second at time
seconds. The velocity at time
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.
?
A. 64 feet/second
B. limit does not exist
C. 0 feet/second
D. 32 feet/second
E. 96 feet/second