Perform the indicated operation.
A. 10
B. 7
C. -8
D. 8
E. -7
Answer: D
Mathematics
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Refer to a normal distribution described by the following figure. The mean is ? and the standard deviation is ?.
Approximately 84% of the data lies below
A. 130. B. 210. C. 154. D. 112. E. none of these
Mathematics
Write the complex number in rectangular form.cis 210
A. - 
- 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
- 
i
Mathematics
Find the sum of the series.
A. 30 B. 5 C. 18 D. 13
Mathematics
Add.
A. 256 B. 243 C. 233 D. 251
Mathematics