Solve the problem.Subtract (7a5 + 2a2) from the sum of (2a5 + 6a2) and 
A. -3a10 - 3a4
B. -6a7
C. -6a14
D. -3a5 - 3a2
Answer: D
Mathematics
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Solve the problem.A jet plane traveling at a constant speed goes 1200 mi with the wind, then turns around and travels for 1000 mi against the wind. If the speed of the wind is 50 mph and the total flight took 4 hr, find the speed of the plane.
A. 605 mph B. 550 mph C. 435 mph D. 525 mph
Mathematics
Solve the equation.
= 4
A. {55} B. {15} C. {15, 55, 0} D. {15, 55}
Mathematics
Graph the linear function.f(x) = 
x - 6
A. 
B. 
Mathematics
Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 7x + 3 = 0
A. 
B. 
C. 
D. 
Mathematics