Perform the indicated operation. Write the answer in the form a + bi.
2
A. 
- 
i
B. 
+ 
i
C. - 
+ 
i
D. - 
- 
i
Answer: C
Mathematics
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Write the number in ordinary notation.7.0289 × 10-7
A. -702890,000 B. 0.000000070289 C. 0.00000070289 D. 0.0000070289
Mathematics
Find the indicated probability.If a person is randomly selected, find the probability that his or her birthday is not in May. Ignore leap years.
A. 
B. 
C. 
D. 
Mathematics
Compute the gradient of the function at the given point.
A. - 
i + 
j - 
k
B. - 
i + 
j - 
k
C. 
i + 
j - 
k
D. 
i + 
j - 
k
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics