Give the focus, directrix, and axis for the parabola.-
x2 = y
A. (0, -9), y = 9, y-axis
B. (0, 9), y = -9, y-axis
C. (-18, 0), x = 9, x-axis
D. (0, -9), y = 9, x-axis
Answer: A
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A. 0.481 rad B. 0.949 rad C. 1.471 rad D. 1.090 rad
A bus company operates four bus routes (A, B, C, and D) and 100 buses. The buses are apportioned among the routes on the basis of average number of daily passengers per route which is given in the following table.
The standard divisor represents
A. the number of buses required for 100,000 passengers. B. the daily average number of passengers per 100 buses. C. the number of passengers that one bus is able to transport per day. D. the daily average number of passengers per bus. E. none of these
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