Solve the problem.A plane takes off from an airport on the bearing S29°W. It continues for 20 minutes then changes to bearing 
and flies for 2 hours 20 minutes on this course then lands at a second airport. If the plane' s speed is 420 mph, how far from the first airport is the second airport? Round your answer correct to the nearest mile.
A. 1110 mi
B. 1011 mi
C. 1111 mi
D. 1010 mi
Answer: A
Mathematics
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Find the limit, if it exists.
A. 0 B. Does not exist C. 5 D. -1
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Write an equivalent expression in exponential form.log10 0.000001 = -6
A. -610 = 0.000001 B. 0.000001-6 = 10 C. 100.000001 = -6 D. 10-6 = 0.000001
Mathematics
What number should be added to complete the square of the expression?x2 + 16x
A. 64 B. 8 C. 32 D. 128
Mathematics
State the dual problem. Use y1, y2, y3 and y4 as the variables. Given: y1 ? 0, y2 ? 0, y3 ? 0, and y4
Minimizew = 2x1 + 3x2 + x3subject to:x1 + 3x2 + 2x3 ? 35 2x1 + 4x2 + 3x3 ? 50 x1 ? 0, x2 ? 0, x3 ? 0
A. Maximize z = 50y1 + 35y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
B.
| Maximize | z = 35y1 + 50y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1
C. Maximize z = 50y1 + 35y2
| subject to: | 2y1 + y2 ? 2 |
3y1 + 2y2 ? 1
D.
| Maximize | z = 35y1 + 50y2 |
| subject to: | y1 + 2y2 ? 2 |
2y1 + 3y2 ? 1
Mathematics