Solve.An arrow is fired straight up from the ground with an initial velocity of 
per second. Its height, 
in feet at any time t is given by the function 
Find the interval of time for which the height of the arrow is greater than 
A. between 2 and 8 sec
B. before 8 sec
C. after 2 sec
D. before 2 sec or after 8 sec
Answer: A
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Solve the problem.How long will it take for $3600 to grow to $47,900 at an interest rate of 8.2% if the interest is compounded quarterly? Round the number of years to the nearest hundredth.
A. 127.54 yr B. 31.89 yr C. 32.84 yr D. 163.92 yr
A 12-foot ladder will be used to paint the exterior of a house.The foot of the ladder needs to be 3.7 feet from the base of the house.What is the maximum height the ladder will reach?
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Perform the indicated operation.[(-10n2 + 4n - 9n3) + (6n2 + 9n + 4n3)] - n2
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