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. 11 P1 planes and 7 P2 planes
B.
| 9 P1 planes and 13 P2 planes |
C. 7 P1 planes and 11 P2 planes
D. 5 P1 planes and 17 P2 planes
Answer: B
Mathematics
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Match the given equation with one of the graphs.x2 - y2 = 121
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The table shows the population of a certain city in various years. The data can be modeled by an exponential function of the form 
Use exponential regression to predict the population of the city in the year 2000. (You will first need to determine the exponential function f that models this data). 
A. About 338,291 B. About 250,475 C. About 307,101 D. About 273,097
Mathematics
Find the asymptotes of the hyperbola.
- 
= 1
A. y - 2 = 
(x - 1) and y - 2 = - 
(x - 1)
B. y - 1 = 
(x - 2) and y - 1 = - 
(x - 2)
C. y = 
(x - 2) and y = - 
(x - 2)
D. y - 1 = 
(x - 2) and y - 1 = - 
(x - 2)
Mathematics
Complete.8 mi = 
yd
A. 8000
B. 
C. 14,080
D. 42,240
Mathematics