Write the rational expression in lowest terms.
A. 
B. 
C. 
D. 
Answer: D
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Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The coordinate axes and the line 
A. 
B. 
C. 
D. 
Use a vertical shift to graph the function.y = 2 cos 
+ 2 
A. 
B. 
C. 
D. 
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 
- 7
A. f-1(x) = 
+ 7
B. f-1(x) = (x + 7)3
C. f-1(x) = x3 + 7
D. f-1(x) = (x - 7)3
Solve using a proportion. Round your answer to the nearest hundredth when necessary.A 30-ounce jar of apple sauce costs $2.40. A 12-ounce jar of the same brand of applesauce costs $1.20. Which size costs less per ounce and by how much?
A. The larger size costs $.03 less per ounce than the smaller size. B. The smaller size costs $.02 less per ounce than the larger size. C. The larger size costs $.02 less per ounce than the smaller size. D. They both cost the same per ounce.