Solve the problem.How many ways can a committee of 3 be selected from a club with 12 members?
A. 1320
B. 220
C. 110
D. 6
Answer: B
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Solve the initial value problem.
= 
- 
, y(0) = -1
A. y = 2 tan-1 x - 1 B. y = 2 cot-1 x - 3 sin-1 x C. y = 2 tan-1 x - 3 sin-1 x - 1 D. y = 2 tan-1 x - 3 sin-1 x + 1
Find the median for each data set.8.7 hr, 6.7 hr, 2.9 hr, 6.9 hr
A. 6.7 hr B. 2.9 hr C. 6.8 hr D. 6.9 hr
Write the satement in symbols. Let x represent the unknown number.Nine times a number, decreased by 29.
A. 9(x + 29) B. 9x + 29 C. 9x - 29 D. 9(x - 29)
Identify the conic section that the polar equation represents. Describe the location of a directrix from the focus located at the pole.r = 
A. ellipse; The directrix is 1 unit(s) above the pole at y = 1. B. ellipse; The directrix is 1 unit(s) to the right of the pole at x = 1. C. ellipse; The directrix is 1 unit(s) below the pole at y = - 1. D. ellipse; The directrix is 1 unit(s) to the left of the pole at x = - 1.