Perform the indicated operations and express your answer in the form a + bi. 
A. 3i
B. -i
C. ±3
D. -3i
Answer: A
Mathematics
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Find the limit if it exists.
(7x - 4)
A. -46 B. -38 C. 46 D. 38
Mathematics
Solve the problem.Use a tree diagram showing all possible results when four fair coins are tossed to list the ways of getting exactly two tails.
A. hhtt, htht, htth, thht, thth, tthh B. hhtt, htht, htth, thht, thth, tthh, ttht C. hhtt, htht, htth, thth, tthh D. tthh
Mathematics
Multiply: (1+j)(3+6j)
What will be an ideal response?
Mathematics
Simplify the fraction to lowest terms.
A. 
B. 
C. 
D. 
Mathematics