Integrate the given expression.
A. 
7 + C
B. 
9 + C
C. - 
x-7 + C
D. -120x-9 + C
Answer: C
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A. 5 lb
B. 5
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C. 5
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D. 8
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Find all complex roots. Write the answer in polar form, with 0 ? ? ? 360°.Fifth roots of i
A. cos 90° + i sin 90°, cos 72° + i sin 72°, cos 144° + i sin 144°, cos 216° + i sin 216°, cos 288° + i sin 288° B. cos 90° + i sin 90°, cos 18° + i sin 18°, cos 162° + i sin 162°, cos 234° + i sin 234°, cos 306° + i sin 306° C. cos 270° + i sin 270°, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324° D. cos 0° + i sin 0°, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324°
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.(x + 10)(x - 4) = -45
A. 4, -55 B. -1, -5 C. -10, 4 D. -41, -10