Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ 18 ln 
+ C
B. 
+ 18 sin-1 
+ C
C. 
+ 18 ln 
+ C
D. 18 sin-1 
+ C
Answer: B
Mathematics
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Write a matrix equation equivalent to the system of equations.9x - 8y + 10z = 3-3x + 9y - 7z = 9
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Write the compound statement in symbols.Let r = "The food is good," p = "I eat too much,"q = "I'll exercise."If I exercise, then the food won't be good and I won't eat too much.
A. q ? ~(r ? p) B. ~(r ? p) ? q C. (q ? ~r) ? ~p D. q ? (~r ? ~p)
Mathematics
Evaluate the integral.
A. - 
- 
ln
+ 
+ C
B. 
- 
ln
+ C
C. - 
+ 
ln
+ C
D. - 
- 
ln
+ C
Mathematics
Use the given information to find the exact value of the expression.sin ? = 
, ? lies in quadrant I, and cos ? = 
, ? lies in quadrant I
Find cos (? + ?).
A. 
B. - 
C. 
D. 
Mathematics