Find the area of the specified region.Inside one loop of the lemniscate r2 = 8 cos 2?
A. 4
B. 16
C. 2
D. 8
Answer: A
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Solve, finding all solutions in [0, 2?). Give an exact answer unless indicated otherwise.
= 
A. 
, 
B. 
, 
C. 
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D. 
, 
The life expectancy E, in solar lifetimes, of certain stars depends on their mass M, in solar masses. The relationship is
.
As mass increases, life expectancy decreases. What can you say about the rate of decrease? A graph of E versus M can help you answer this question.
?
A. Life expectancy decreases at a decreasing rate. B. Life expectancy decreases at an increasing rate. C. Life expectancy reaches a point of inflection. D. None of the above.
Provide an appropriate response.A triangular city block is 360 ft on one side and 375 ft on the second side. What is the area of the block?
Fill in the blank(s) with the appropriate word(s).
Calculate. Write the answer in lowest terms and as a mixed number where appropriate.5
÷ 
A. 42
B. 44
C. 41
D. 43