Perform the operation and write the result in the standard form.(18 + 6i) - (7 + 3i)
A. -11 + 3i
B. 11 - 3i
C. 11 + 3i
D. -11 - 3i
Answer: C
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Provide an appropriate response.Express 80 inches in standard notation using feet and inches.
A. 6 ft 10 in. B. 2 yd 8 in. C. 2 yd 8 ft D. 1 yd 3 ft 8 in.
Add.90,461 + 77,687 + 1090
A. 204,238 B. 167,233 C. 169,238 D. 168,238
Provide an appropriate response.If X is normally distributed with mean ? and standard deviation ?, then what is the approximate probability that ? - 2? ? X ? ? + 2??
A. 0.997 B. 0.68 C. 0.5 D. 0.999 E. 0.95
As a fringe benefit for the past 12 years, Colin's employer has contributed $50 at the end of each month into an employee retirement account for Colin that pays interest at the rate of 7%/year compounded monthly. Colin has also contributed $1,500 at the end of each of the last 6 years into an IRA that pays interest at the rate of 8%/year compounded yearly. How much does Colin have in his retirement fund at this time? Please round the answer to the nearest cent.
$ __________