Perform the indicated operation. Simplify if possible.
- 
A. - 
B. 
C. - 
D. 
Answer: B
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Solve the problem by integration.Find the first-quadrant area bounded by 
and x = 2.
A. 4 ln 
B. 2 ln 
C. 4 ln 
D. 4 ln 49
Factor the polynomial completely.w2 + 6w + 9 - z2
A. (w + 3 + z)(w + 3 - z) B. (-w + 9 + z)(w + 9 - z) C. (w - 3 + z)(w - 3 - z) D. (w - 3 + z)(w + 3 - z)
Solve the problem.A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 208 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?
A. 10,816 ft2 B. 8,112 ft2 C. 5,408 ft2 D. 2,704 ft2
Solve.Ms. Lembke was not able to sell her house for $130,000, so she lowered the price to 
. What was the percent of decrease?
A. 7.7% B. 92.3% C. 1200% D. 8.3%