Perform the indicated operation. Write the result in the form a + bi.(9 - 9i) + (4 + 2i)
A. 13 - 7i
B. 5 + 11i
C. -13 + 7i
D. 13 + 7i
Answer: A
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Find the square root correct to the thousandths place.
A. 6.250 B. 6.242 C. 39.000 D. 6.245
Factor completely. If the polynomial cannot be factored, write prime.x2 + 8x - 33
A. (x + 11)(x - 3) B. (x - 11)(x + 1) C. (x - 11)(x + 3) D. Prime
Determine whether the given geometric series is convergent or divergent, and find the sum if it is convergent.17 + 10.2 + 6.12 + 3.672 + ...
A. Convergent; S = 63.75 B. Convergent; S = 42.5 C. Divergent D. Convergent; S = 25.5
Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Cube roots of 
- i
A. 2(cos 100° + i sin 100°), 2(cos 220° + i sin 220°), 2(cos 340° + i sin 340°)
B. 2(cos 110° + i sin 110°), 2(cos 230° + i sin 230°), 2(cos 350° + i sin 350°)
C. 
(cos 100° + i sin 100°), 
(cos 220° + i sin 220°), 
(cos 340° + i sin 340°)
D. 
(cos 110° + i sin 110°), 
(cos 230° + i sin 230°), 
(cos 350° + i sin 350°)