Factor completely.169s2 - 25t4
A. (13s + 5t2)(13s - 5t2)
B. (13s + 5t2)2
C. (169s + t2)(s - 25t2)
D. (13s - 5t2)2
Answer: A
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Graph the system of inequalities. Find the coordinates of the vertices.2y + x ? -2,y + 3x ? 9,y ? 0,x ? 0
A. 
(0 , -2) , (0, 9) , (4, -3)
B. 
(-2, 0) , (0, 9) , (0, 0)
C. 
(0 , -2) , (3, 0) , (4, -3)
D. 
(0, 0) , (0 , -1) , (3, 0) , (4, -3)
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A. True B. False
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. 550 mph B. 435 mph C. 605 mph D. 525 mph