Simplify.
A. 
B. 
C. 
D. 
Answer: C
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Graph the integrand and use areas to evaluate the integral.
A. 432 B. 324 C. 108 D. 648
Solve the problem.A toy rocket is launched straight upward with an initial velocity of 160 feet per second from a 2-foot high platform. The height h, in feet, of the rocket above ground t sec after it is launched is modeled by the function h(t) = -16t2 + 160t + 2. When will the rocket reach its maximum height? What is that height?
A. 1602 ft in 10 sec B. 102 ft in 10 sec C. 402 ft in 5 sec D. 27 ft in 5 sec
Solve the problem.The inequality |T - 8| ? 13 describes the range of monthly average temperatures T in degrees Fahrenheit at a City X. (i) Solve the inequality. (ii) If the high and low monthly average temperatures satisfy equality, interpret the inequality.
A. -20 ? T ? 36; The monthly averages are always within 
B. -5 ? T ? 21; The monthly averages are always within 
C. 21 ? T ? 34; The monthly averages are always within 
D. 36 ? T ? 64; The monthly averages are always within 
Solve.A sales representative is paid a commission rate of 5.7%. Find her commission if she sold $137,720 worth of goods last month.
A. $24,161.40 B. $145,570.04 C. $2416.14 D. $7850.04