Solve using the quadratic formula.
x2 - x + 
= 0
A. 
, 
B. 
C. 
, 
D. 
, 
Answer: D
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Solve the problem.The speed of a stream is 5 mph. If a boat travels 74 miles downstream in the same time that it takes to travel 37 miles upstream, what is the speed of the boat in still water?
A. 10 mph B. 17 mph C. 15 mph D. 18 mph
Solve the problem.The odds in favor of an earthquake are 7 to 1. What is the probability that an earthquake will occur?
A. 
B. 
C. 
D. 7
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.644/3
A. 4096 B. 1024 C. 256 D. 16,384
If possible, solve the system of equations. Use any method. If there is not a unique solution to a system, say why.9x = 95 - 8y-5x + 3y = -23
A. (6, 5) B. (7, 4) C. (7, 5) D. No solution; inconsistent system of equations