Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(6x3)-2
A. 36x6
B. 
C. 
D. 
Answer: D
Mathematics
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Find the volume under the surface of the specified figure. z = 1 + x + y; R = {(x, y):0 ? x ? 2, 0 ? y ? 4]
A. 11 B. 24 C. 18 D. 32
Mathematics
Find an equation of the line with the given properties. Express your answer in slope-intercept form. Graph the lines.Passing through (-9, 3) and perpendicular to 9x + 4y = 54
A. y = 
x + 7
B. y = - 
x + 3
C. y = - 
x + 7
D. y = - 
x + 54
Mathematics
The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars. Use the information in the figure to answer the question.
At the break-even point both cost and revenue are what?
A. $2700 B. $1500 C. $2250 D. $750
Mathematics
Find the difference.4 - (-1)
A. 5 B. 3 C. -3 D. -5
Mathematics