Perform the indicated operation. Write the result in the form a + bi.(5 - 7i)(8 - 5i)
A. 31 + 75i
B. 75 - 31i
C. 5 - 81i
D. 5 + 81i
Answer: C
Mathematics
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Evaluate the integral.
A. 5
j
B. - 
+ 
(2
- 1)
C. - 
i + 
(2
- 1) j
D. - 
i + 
(2
- 1) j
Mathematics
Provide an appropriate response.The payee of a check is recorded in the memo portion.
A. True B. False
Mathematics
First use front-end rounding to write an estimate of the answer, and then multiply fully to obtain an exact answer.EstimateProblem
?
A. Estimate: 4, exact: 4 B. Estimate: 0.1, exact: 3.9 C. Estimate: 1, exact: 3 D. Estimate: 0.4, exact: 0.4
Mathematics
Solve the equation by completing the square.x2 + 3x - 9 = 0
A. 
B. 
C. {-3 - 3
, -3 + 3
}
D. 
Mathematics