Fill in the blank with one of the words or phrases listed below. 
An angle that measures 90° is called a(n) 
angle.
A. supplementary
B. complementary
C. straight
D. right
Answer: D
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Solve the problem.Plot the point 
and find other polar coordinates (r, ?) of the point for which:(a) r > 0, -2? ? ? < 0(b) r < 0, 0 ? ? < 2?(c) r > 0 2? ? ? < 4? 
What will be an ideal response?
Find the slope and the y-intercept of the given line.7x + 9y = 73
A. 
; 
B. - 
; 
C. 
; 
D. - 
; 
Use the table of record trout lengths at Yosemite Lake to answer the question. To find the average, add up the values you are interested in and then divide the sum by the number of values. Round your answer to the nearest tenth. 
Find the average length of record trout caught during a weekday.
A. 14.2 in. B. 14.5 in. C. 19.8 in. D. 72.7 in.
Name the quadrant or axis in which the point lies.(19, 17)
A. quadrant I B. quadrant II C. quadrant III D. quadrant IV