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October 21, 2014

October 21, 2014

Posted by **Lucy** on Saturday, October 11, 2008 at 2:03pm.

Answer: 5400

Find the probability of getting a sum of 5 on the first toss of two number cubes and a sum of 6 on the second toss.

Answer: 1/54

Solve e^sqrtx=4

Answer: x=1.92

Thanks

- Pre-Calculus-check answers -
**Reiny**, Saturday, October 11, 2008 at 6:24pm1. the 3 seniors can be chosen i C(6,3) ways, which is 20

that leaves 2 juniors to be choses from the 4 juniors, which is 6

so the number of ways is 20x6 or 120 ways

2. there are 4 ways to get a 5, (1,4),(2,3),(3,2), and (4,1)

so prob of a 5 = 4/36 = 1/9

similarly there are 5 ways to get a 6.

so the prob of a 5 followed by a 6

= 1/9 x 5/36 = 5/324

3. correct

- Pre-Calculus-check answers -
**Anonymous**, Monday, October 20, 2008 at 5:25pm75*32

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