Solve the problem.A barge takes 4 hours to move (at a constant rate) downstream for 32 miles, helped by a current of 2 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.
A. 64 hr
B. 8 hr
C. 6 hr
D. 4 hr
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Solve the problem.Estimate the area of the surface generated by revolving the curve y = cos 2x, 0 ? x ? ?/4 about the x-axis.Use the Trapezoidal Rule with n = 6.
A. 7.091 B. 5.108 C. 4.652 D. 4.606
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Find the product.(x + 4)(x - 4)
A. x2 - 8x - 16 B. x2 - 16 C. x2 + 8x - 16 D. x2 - 8
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Write the logarithmic equation
in exponential form.
a. 
b. 
c. 
d. 
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