Solve the problem.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane.
A. 435 mph
B. 550 mph
C. 605 mph
D. 525 mph
Answer: B
Mathematics
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Solve the system by graphing. 3x + 2y = 5-6x - 4y = 5
A. ? B. {(1.5, -1)} C. {(-1.5, -1)} D. {(1, 1)}
Mathematics
Solve the equation by making an appropriate substitution.x - 16
- 512 = 0
A. {2048} B. {768} C. {1024} D. {512}
Mathematics
Simplify the algebraic expression by collecting and combining like terms.2 + 2(16 - 9m)
A. -18m + 32 B. -9m + 34 C. 18m + 34 D. -18m + 34
Mathematics
Find all the zeros of the polynomial function.P(x) = 2x4 + 17x3 + 59x2 + 83x + 39
A. -1, + 
, -2 + 3i, -2 - 3i
B. -1, - 
, -3 + 2i, -3 - 2i
C. 1, + 
, -2 + 3i, -2 - 3i
D. 1, - 
, -3 + 2i, -3 - 2i
Mathematics