Perform the indicated operations and write the answer in the form 
where a and b are real numbers.(9 + 9i)(3 - 4i)
A. 63 - 9i
B. -36i2 - 9i + 27
C. -9 + 63i
D. 63 + 9i
Answer: A
Mathematics
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Evaluate the integral. 
Give your answer in exact form.
A. 
+ 
ln(2
)
B. 
+ 
ln(7 + 4
)
C. 
+ 
ln 4
D. 
+ 
ln(7 + 4
)
Mathematics
Solve the system of equations graphically using a graphing calculator. Find all values to the nearest tenth.y = 2x + 4xy = -2
A. x = 0.4, y = 4.8; x = -2.4, y = -0.8 B. x = 0.4, y = 4.8 C. x = -1.0, y = 2.0 D. No solution
Mathematics
Find the area of the specified region.Shared by the circles r = 9 cos ? and r = 9 sin ?
A. 
(? - 2)
B. 
(4? - 3
)
C. 
?
D. 
(2 - 
)
Mathematics
Construct a graph for the first ten terms of the sequence.an = 
- 
A. 
B. 
C. 
D. 
Mathematics