Multiply.(9m - 2w)(9m + 2w)
A. 81m2 + 36mw - 4w2
B. 81m2 - 36mw - 4w2
C. 81m2 - 4w2
D. 9m2 - 2w2
Answer: C
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Find all points where the function is discontinuous.
A. None B. x = 2 C. x = 4 D. x = 4, x = 2
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
Perform the indicated operation.43 + (-70)
A. 27 B. -27 C. 113 D. -113
Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = 
9
A. y = u9; u = 6x2 - 
- x; 
= 9
8
B. y = u9; u = 6x2 - 
- x; 
= 9
8
C. y = u9; u = 6x2 - 
- x; 
= 9
8
D. y = 6u2 - 
- u; u = x9; 
= 12x18 - 
- x9