Solve the problem.A boat can go 99 mph in still water. It takes as long to go 250 mi upstream as it does to go downstream 300 mi. How fast is the current?
A. 8 mph
B. 9 mph
C. 5 mph
D. 1 mph
Answer: B
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When the graph of directed distance reaches a maximum (at a peak), what can be said about velocity at this point?
A. Velocity is a linear function. B. Velocity reaches a minimum. C. Velocity reaches a maximum. D. Velocity is 0.
Solve by the method of your choice. Identify whether the system has no solution or infinitely many solutions, using set notation to express the solution set.4x + y = 11y = 12 - 4x
A. {(x, y) 
}
B. ?
C. {(5, -9)}
D. {(0, 11)}
Solve the problems.A wastewater treatment plant processes 613,000 gal/day. Convert this to liters per hour.
A. 96,700 L/h B. 162,000 L/h C. 6,750 L/h D. 9,670 L/h
Evaluate the expression for the given replacement values. Write the answer in simplest form.x + y for x = 
, y = 
A. 2
B. 
C. 1
D. 