Solve the problem.A ball is kicked upward with an initial velocity of 32 feet per second. The ball's height, h (in feet), from the ground is modeled by 
where t is measured in seconds. What is the practical domain in this situation?
A. 0 ? t ? 1
B. 0 ? t ? 2
C. 0 ? t ? 8
D. All real numbers
Answer: B
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Simplify the complex fraction.
A. - 
B. - 
C. 
D. - 
Solve.How long will it take for the population of a certain country to double if its annual growth rate is 
? Round to the nearest year.
A. 74 yr B. 26 yr C. 1 yr D. 11 yr
Solve the problem.To estimate his travel time, Joe divides the distance, d, in miles by 5 less than his expected average speed, in miles per hour. If Joe plans on driving 75 miles per hour and he has to travel 310 miles, how long does he expect to be traveling? Round to the nearest tenth when necessary.
A. 0.2 hr B. 3.9 hr C. 4.1 hr D. 4.4 hr
Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.Find the minimum payment on an unpaid balance of $769.52.
A. $230.86 B. $27.00 C. $23.09 D. $28.09