Represent the complex number graphically, and find the trigonometric form of the number.
?
-8i
?
A. ?
B. ?
C. ?
D.
E. ?
Answer: E
Mathematics
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Solve the problem.The temperature in Fairbanks is approximated by T(x) = 37 sin 
+ 25,where T(x) is the temperature on day x, with x = 1 corresponding to 
and x = 365 corresponding to Dec. 31. Estimate the temperature on day 49.
A. -29° B. 45° C. -4° D. -25°
Mathematics
Write the whole number in expanded form.93,647
A. 90,000 + 3000 + 600 + 40 + 7 B. 70,000 + 4000 + 600 + 30 + 9 C. 93,647 D. 9000 + 300 + 60 + 47
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.(4 - 9i)2
A. 97 - 72i B. 16 - 153i C. -65 - 72i D. 16 + 9i
Mathematics
Find a z-score satisfying the given condition.33% of the total area is to the right of z.
A. 0.45 B. 0.44 C. 0.74 D. -0.44
Mathematics