Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Evaluate the integral by using a substitution prior to integration by parts.
A. x cos (ln x) + sin (ln x)+ C
B. 
[cos (ln x) + sin (ln x)] + C
C. x[cos (ln x) + sin (ln x)] + C
D. 
[cos (ln x) - sin (ln x)] + C
Mathematics
Find the equation of a circle satisfying the given conditions.Center: (6, 0); radius: 7
A. x2 + (y + 6)2 = 7 B. (x - 6)2 + y2 = 49 C. x2 + (y - 6)2 = 7 D. (x + 6)2 + y2 = 49
Mathematics
Perform the indicated operations. Reduce answers to lowest terms and write any improper fractions as whole or mixed numbers.
+ 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the algebraic expression for the indicated variable.
for x = 5, y = 7
A. 13 B. 21 C. 121 D. 69
Mathematics