Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 10 miles per hour and the other at 9 miles per hour. In how many hours will they be 57 miles apart?
A. 4 hr
B. 5 hr
C. 1 hr
D. 3 hr
Answer: D
Mathematics
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Add or subtract as indicated. Make sure that your answer is reasonable by estimating first.13 + 13.152
A. 0.152 B. -0.152 C. 26.252 D. 26.152
Mathematics
Perform the indicated operation.0.216 ÷ 72
A. 0.004 B. 0.002 C. 0.0029 D. 0.003
Mathematics
Write the equation of the graph after the indicated transformation(s). The graph of y = x2 is shifted 4 units to the right. This graph is then vertically stretched by a factor of 6 and reflected across the x-axis. Finally, the graph is shifted 8 units upward.
A. y = -6(x - 4)2 + 8 B. y = -6(x - 4)2 - 8 C. y = -6(x + 8)2 + 4 D. y = -6(x + 4)2 + 8
Mathematics
For the given functions f and g, find the requested composite function value.f(x) = 
, g(x) = 5x;
Find (f ? g)(2).
A. 5
B. 
C. 
D. 5
Mathematics