Solve the quadratic equation by factoring.
?
?
A. -7, -14
B. 7, -14
C. 7, 14
D. -7, 14
E. -7, 7
Answer: D
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Solve the problem.If an object is thrown upward with an initial velocity of 12 ft per sec, then its height (in feet) is given by 
after time t seconds. What is its maximum height?
A. 144 ft B. 147 ft C. 36 ft D. 108 ft
Evaluate.
2
A. 2
B. 
C. 
D. 
Solve the problem. Use ? ? 3.14.A circular planetarium with a radius of 30 ft has 10 ft high walls and a dome ceiling in the shape of a hemisphere. How many cubic feet per minute must the air conditioner supply to change all the air in the room twice per hour? Round your answer to the nearest tenth.
A. 1413 ft3 per minute B. 20,826 ft3 per minute C. 1294.2 ft3 per minute D. 2826 ft3 per minute
Solve the system of equations using the inverse of the coefficient matrix.
A. x = -1, y = 0, z = 1, w = 1 B. x = -3, y = -2, z = -3, w = 1 C. x = -3, y = 2, z = 3, w = -1 D. The system is inconsistent.