Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 1 + i, z2 = 
+ i
A. (
- 2)(cos 15° + i sin 15°)
B. cos 75° + i sin 75°
C. 
(cos 15° + i sin 15°)
D. 
(cos 75° + i sin 75°)
Answer: C
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The following table shows the running speed R, in feet per second, of animals of length L, in inches. If one animal is 5 inches longer than another, then based on the regression equation, how would their running speeds compare? L 3.5 6.3 9.4 9.8 R 8.21 15.72 24.05 24.95? ?
A. The longer animal would run 2.67 times faster than the shorter animal. B. The longer animal would run 13.35 times faster than the shorter animal. C. The longer animal would run 13.35 feet per second faster than the shorter animal. D. The longer animal would run 2.67 feet per second faster than the shorter animal.
Find equations of the tangent lines to the curve 
that are parallel to the line x–y=10.
a. x – y = – 4.5 b. x – y = – 2 c. x – y = – 12.5 d. x – y = – 19.75 e. x – y = – 15
Solve the rational inequality.
< 0
A. (-?, -8) ? (3, ?) B. (-8, 3) C. (-?, -8) D. (3, ?)
Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 
- 2
What will be an ideal response?