Solve.One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 4 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 9
min
B. 2
min
C. 25 min
D. 
min
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Solve the problems.Two angles are complementary if their sum is 90°. If the measure of the first angle is x°, and the measure of the second angle is (3x - 2)°, find the measure of each angle.
A. 1st angle = 22°; 2nd angle = 68° B. 1st angle = 31°; 2nd angle = 59° C. 1st angle = 22°; 2nd angle = 64° D. 1st angle = 23°; 2nd angle = 67°
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Find the general form of the equation for the line with the given properties.Slope = - 
; containing the point (0, 5)
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Mathematics
Evaluate the polynomial for the given value of x.-5x2 + 9x + 1 for x = 4
A. -47 B. 17 C. -53 D. -43
Mathematics