Perform the desired operation. Write the answer in the form a + bi.(2 + 4i)(2 - 4i)
A. 4 - 16i2
B. -12
C. 20
D. 4 - 16i
Answer: C
Mathematics
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Solve the problem.Suppose that f is continuous and that 
and 
Find 
A. -35 B. -7 C. 35 D. -5
Mathematics
Solve the problem.If n(A) = 46, n(B) = 29, and n(A ? B) = 62, find n(A ? B).
A. 75 B. 26 C. 13 D. 49
Mathematics
Fill in the blank with one of the words or phrases listed below. 
The 
of a polygon is the distance around the polygon.
A. surface area B. area C. perimeter D. volume
Mathematics
Solve the problem.A particular freight elevator can safely carry 1096 pounds. How many 
bundles of wood can be safely carried by this elevator?
A. 5 bundles B. 4 bundles C. 7 bundles D. 8 bundles
Mathematics