Use the result ei? = cos ? + i sin ? to plot the complex number.6e(?i)/2
A. 
B. 
C. 
D. 
Answer: C
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Restate the fact as indicated.In a given year, the U.S.annual energy consumption is roughly 1 × 1020 Joules. Express this as energy consumption per person per second. Assume that the U.S. population during this year is roughly 280 million. .
A. 3.6 × 1011 Joules per person per second B. 680,000 Joules per person per second C. 11,324.9 Joules per person per second D. 190.3 Joules per person per second
Write a numerical expression for the phrase and simplify it.0.85 added to the sum of 2.89 and -8.29
A. 2.89 + [(-8.29)+ 0.85]; 4.55 B. [2.89 + 8.29] + 0.85; 12.03 C. [2.89 + 0.85] + (8.29); -12.03 D. [2.89 + (-8.29)] + 0.85; -4.55
Subtract.
A. 854 B. 1004 C. 944 D. 954
Find an equation for the sphere with the given center and radius.Center (-1, 0, 0), radius = 3
A. x2 + y2 + z2 - 2x = 8 B. x2 + y2 + z2 - 2x = 3 C. x2 + y2 + z2 + 2x = 3 D. x2 + y2 + z2 + 2x = 8