Perform the indicated operation. Write the sum as a fraction, whole number, or mixed number in lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Integrate the function f over the given region.f(x, y) = 
over the region bounded by the x-axis, line 
and curve 
A. 6 B. 1 C. 7 D. 8
Mathematics
Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.
-2
A. 
B. 
C. 
D. 
Mathematics
Solve for rate in the problem. Round to the nearest tenth of a percent. % of 1,743 sales is 15 sales.
A. 8.6 B. 11,620.0 C. 0.9 D. 18.6
Mathematics
Match the system of inequalities with one of the graphs.
A. 
B. 
C. 
D. 
Mathematics