Simplify by using the associative property of multiplication.5(8t)
A. 
t
B. 
t
C. 13t
D. 40t
Answer: D
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Determine whether the sequence is geometric.an = -50(0.01)-n
A. Geometric B. Not geometric
Solve the problem.Assume that the profit generated by a product is given by 
where x is the number of units sold. If the profit keeps changing at a rate of 
per month, then how fast are the sales changing when the number of units sold is 1400? (Round your answer to the nearest dollar per month.)
A. $112,250/month B. $3/month C. $4490/month D. $2245/month
Use the two steps for solving a linear programming problem to solve the problem.An airline with two types of airplanes, P1 and P2, has contracted with a tour group to provide transportation for a minimum of 400 first class, 750 tourist class, and 1500 economy class passengers. For a certain trip, airplane P1 costs $10,000 to operate and can accommodate 20 first class, 50 tourist class, and 110 economy class passengers. Airplane P2 costs $8500 to operate and can accommodate 18 first class, 30 tourist class, and 44 economy class passengers. How many of each type of airplane should be used in order to minimize the operating cost?
A. 5 P1 planes and 17 P2 planes
B.
| 9 P1 planes and 13 P2 planes |
C. 11 P1 planes and 7 P2 planes
D. 7 P1 planes and 11 P2 planes
The (r + 1)st term of the expression (a + b)n, 0 ? r ? n, is given by 
an - rbr. Find the specified term.The 3rd term of (4x + 9)3.
A. 432x2 B. 81 C. 1944x D. 972x