Use the distributive property to simplify.-2(x + 5)
A. -2x - 10
B. 2x - 10
C. -2x + 10
D. -2x + 5
Answer: A
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Evaluate the integral which is given in cylindrical or spherical coordinates.
A. 
B. 
C. 
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D. 
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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
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Solve the problem.How many different ways can a president, vice-president, and secretary be chosen from a club with 11 members?
A. 6 B. 990 C. 165 D. 33