Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Answer: D
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Simplify.
A. 
B. 
C. 
D. 
Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest tenth unless otherwise indicated.A cylindrical drain pipe is 5 in across the top and about 9 in high. How many cubic inches of water could it hold?
A. 282.6 in3 B. 706.5 in3 C. 176.6 in3 D. 353.3 in3
If possible, find the mode(s) of the data set.1.3, 0.6, 0.8, 1.3, 0.4, 1.5, 0.4, 1.6, 2
A. Two modes: 0.4 and 1.3 B. 1.3 C. 1.1 D. 0.4
Provide the proper response.If r(t) is the rate of change of revenue, then 
isi) the total revenue up to time b.ii)the total revenue from time a to time b.iii) the change in revenue at any time.
A. Only i is correct. B. Only ii is correct. C. Only iii is correct. D. None of the above is correct.