Use a special product formula to simplify.(11p + 13)(11p - 13)
A. 121p2 - 286p - 169
B. 121p2 + 286p - 169
C. p2 - 169
D. 121p2 - 169
Answer: D
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Evaluate the integral.
x dx
A. x cos-1x + 
+ C
B. x cos-1x - 
+ C
C. x cos-1x - 
+ C
D. x cos-1x - 2
+ C
Factor.4 - w2
A. (2 + w)2 B. (2 - w)2 C. (2 - w)(2 + w) D. 4 - w2
An apple orchard has an average yield of 36 bushels of apples/tree if tree density is 21 trees/acre. For each unit increase in tree density, the yield decreases by 2 bushels. Letting x denote the number of trees beyond 21/acre, find a function in x that gives the yield of apples. ?
A. f(x) = (21 + x)(36 + 2x) B. f(x) = 2(21 + x)(36 - x) C. f(x) = 2(21 - x)(36 - 2x) D. f(x) = (21 - x)(36 + 2x) E. f(x) = (21 + x)(36 - 2x)
Answer the question.In the fraction 
, the numerator is ? .
A. 24 B. 10 C. 6 D. 4