Evaluate the integral.
A. 5 tan-1
+ C
B. 
sin-1
+ C
C. 
tan-1
+ C
D. (2x + 6) ln 
+ C
Answer: C
Mathematics
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Perform the indicated operation and simplify. Write the answer in the form a + bi.
A. 
- 
i
B. - 
- 
i
C. 
- 
i
D. - 
- 
i
Mathematics
Solve the problem.An architect needs to design a rectangular room with an area of 
What dimensions should she use in order to minimize the perimeter? Round to the nearest hundredth if necessary.
A. 9.7 ft x 9.7 ft B. 23.5 ft x 23.5 ft C. 18.8 ft x 94 ft D. 9.7 ft x 23.5 ft
Mathematics
Solve the system by substitution. 3x - 13 = -y2x + 9y = -8
A. {(-5, 2)} B. {(-5, -2)} C. {(5, 2)} D. {(5, -2)}
Mathematics
Look for a pattern and then predict the general term, or nth term, an, of the sequence.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics