Perform the desired operation. Write the answer in the form a + bi.(-5 + i)(-5 - i)
A. -5
B. -24
C. 26
D. 25
Answer: C
Mathematics
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Simplify the expression.5y + 6(y - 1)
A. 30y - 6 B. 11y2 - 6 C. 11y + 6 D. 11y - 6
Mathematics
Determine if the sequence is bounded. 
A. bounded B. not bounded
Mathematics
Find the present value of the annuity. Round to the nearest cent.
Payments of $50,000 made semiannually for 12 years at 5% compounded semiannually
A. $443,162.50 B. $945,696.50 C. $894,249.50 D. $866,605.50
Mathematics
Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
a = 20, c = 52; find b
A. 3104
B. 48
C. 2704
D. 4
Mathematics