Evaluate the integral by making a substitution and then using a table of integrals.
A. 
ln(5x2 + 2x)
B. 
+ C
C. 
+ C
D. 
- 
ln(5x + 2) + C
Answer: C
Mathematics
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Find the length of the curve.The curve r = a cos2 
, 0 ? ? ? ?, a > 0
A. 
B. 2?a
C. 
D. 2a
Mathematics
Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 
< 
B. 
< 1.23 × 10-2
C. 
< 1.37 × 10-3
D. 
< 4.12 × 10-3
Mathematics
Find an algebraic expression for the given expression.sin(3 sin-1 x)
A. 1 - 2x - 2x2 - 2x3 B. 3x - 4x3 C. 2 + x - 2x2 - 2x3 D. 3x - 3x3
Mathematics
Solve.The sum of the ages of Art, Ben, and Cal is 59. Art is 1 year older than Cal, and Cal is 1 year younger than Ben. Which of these people were teenagers 7 years ago?
A. Art B. Art, Ben, and Cal C. Art and Ben D. Ben
Mathematics