Complete the trinomial so it is a perfect square.x2 - 
x + 
A. 
B. 
C. 
D. 
Answer: B
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Perform the indicated operations.26
- 9
A. 35
B. 17
C. 119
D. 17
Solve the system using Gaussian elimination.
A. {(6, 7, 9)} B. ? C. {(-6, 9, 12)} D. {(6, 9, 7)}
Solve the problem.From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 7 miles per hour and Fred rides 5 miles per hour. In how many hours will they be 60 miles apart?
A. 6 hours B. 5 hours C. 4 hours D. Not enough information
Solve the problem.The function h = -16t2 + 16t + 282 gives the height h, in feet, of a coin tossed upward from a balcony 282 ft high with an initial velocity of 16 ft/sec. During what interval of time will the coin be at a height of at least 90 ft?
A. 4 ? t ? 8 B. 3 ? t ? 4 C. 0 ? t ? 4 D. 0 ? t ? 1