Solve the problem.The rate of growth of a microbe population is given by 
where x is time in days. What is the net growth between day 3 and day 7?
A. 111,306,789
B. 222,613,533
C. 222,613,544
D. 117,238,789
Answer: D
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Write the quotient in the standard form.
A. 1 + 
i
B. 
i
C. 1 + 
i
D. 
i
Without actually solving the equation, list all possible numbers that would have to be rejected if they appeared as potential solutions. 
+ 
= 
A. 5, -1, 7 B. 0, 5, -1, 7 C. -1, 7 D. There are no numbers that would have to be rejected.
Find all the complex roots. Leave your answers in polar form with the argument in degrees.The complex fifth roots of -2i
A. 32(cos 54° + i sin 54°), 32(cos 126° + i sin 126°), 32(cos 198° + i sin 198°), 32(cos 270° + i sin 270°), 
B. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
C. 
(cos 45° + i sin 45°), 
(cos 117° + i sin 117°), 
(cos 189° + i sin 189°), 
(cos 261° + i sin 261°), 
D. 
(cos 54° + i sin 54°), 
(cos 126° + i sin 126°), 
(cos 198° + i sin 198°), 
(cos 270° + i sin 270°), 
Find the requested angle.The supplement of 20°.
A. 250° B. 340° C. 70° D. 160°