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 11 miles per hour. In how many hours will they be 84 miles apart?
A. 1 hr
B. 6 hr
C. 5 hr
D. 4 hr
Answer: D
Mathematics
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Use a graphing calculator to perform the indicated multiplication.
A. 
B. 
C. 
D. 
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Rewrite the expression in terms of exponentials and simplify the results.sinh (2 ln 8x)
A. 
B. 4
C. 16x
D. 
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Graph the region described by the inequality.-4x ? 2y
A. 
B. 
C. 
D. 
Mathematics
Select the graph of the polar equation using symmetry, zeros, maximum r-values, and any
other additional points.
?
?
A. Symmetric with respect to polar axis
Circle with radius 2.5
?
B. Symmetric with respect to polar axis
Circle with radius 2.5
?
C. Symmetric with respect to polar axis
Circle with radius 2.5
?
D. Symmetric with respect to polar axis
Circle with radius 2.5
?
E. Symmetric with respect to polar axis
Circle with radius 2.5
?
Mathematics