Simplify.
÷ 
A. 
B. 
C. 
D. 
Answer: B
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Describe the graph of the polar equation.r cos ? = 12
A. Horizontal line through (0, 12) B. Line with slope 12 passing through the origin C. Circle centered at origin with radius 12 D. Vertical line through (12, 0)
Solve the polynomial equation. In order to obtain the first root, use synthetic division to test the possible rational roots. x3 + 8x2 - x - 8 = 0
A. {1, -1, 8} B. {1, -1, -8} C. {1, 2, -4} D. {-1, 2, 4}
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
D. 
+ 
Solve the problem.A person at the top of a 600 foot tall building drops a yellow ball. The height of the yellow ball is given by the equation src="https://sciemce.com/media/4/ppg__10703191731__f1q33g4.jpg" alt="" style="vertical-align: -4.0px;" /> where h is measured in feet and t is the number of seconds since the yellow ball was dropped. Find the time that the balls are the same distance above the ground and find this distance.
A. 5.5 sec; 116 ft
B. 5 sec; 200 ft
C. 4 sec; 344 ft
D. 4.5 sec; 276 ft
where h is measured in feet and t is the number of seconds since the yellow ball was dropped. A second person, in the same building but on a lower floor that is 
from the ground, drops a white ball 
after the yellow ball was dropped. The height of the white ball is given by the equation