Chooce the most reasonable metric measure.the width of a box of matches
A. dekameter
B. millimeter
C. kilometer
D. meter
Answer: B
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Give the focus, directrix, and axis for the parabola.x2 = 8y
A. (2, 0), y = 2, y-axis B. (0, -2), x = -2, x-axis C. (0, 2), y = -2, y-axis D. (2, 0), x = 2, x-axis
Solve.A company has 63,000 employees. Of these, 
drive alone to work, 
car pool, 
use public transportation, 
cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?
A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
Factor by grouping.12a3 - 9a2b - 20ab2 + 15b3
A. (3a2 - 5b)(4a - 3b) B. (3a2 + 5b2)(4a + 3b) C. (3a2 - 5b2)(4a - 3b) D. (12a2 - 5b2)(a - 3b)
The graph of a polar equation is given. Select the polar equation for the graph. 
A. r sin ? = 3 B. r = 3 C. r = 6 cos ? D. r = 6 sin ?