Evaluate.Evaluate x + y + z, if x is 8, y is 9 and z is 10.
A. 28
B. 27
C. 26
D. 17
Answer: B
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Plot the ordered pair in the coordinate plane. In which quadrant or on which axis does the point lie?(-4, 3)
A. Quadrant IV
B. Quadrant I
C. Quadrant II
D. Quadrant III
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 3 
A. 
x2 + y2 = 9; circle, radius 3,
center at pole
B. 
x = 3; vertical line 3 units to the right
of the pole
C. 
x2 + 
2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
D. 
2 + y2 = 
; circle,
radius 
, center at 
in
rectangular coordinates
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.8logby + 2logbz
A. logb(yz)10 B. logby8z2 C. 10logbyz D. 16logbyz
Solve the problem.The average daily temperature T of a city in the United States is approximated by T = 55 - 23 cos 
(t -30)where t is in days, 1 ? t ? 365, and t = 1 corresponds to January 1. Find the period of T.
Fill in the blank(s) with the appropriate word(s).