a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. find each probability.
selecting two blue chips without replacement

Step-by-step explanation:

First, we need to look at the # of chips. There are a total of 25, 6 of which are blue.

This means that the chance of getting the first blue chip would be

As there is no replacement, the total number of chips is 24 and there are only 5 blue left. This gives us the chance of

Now all we need to do is mulitply these two and then simplify

1/20

Step-by-step explanatio

pick without replacement must mean pick it two times without put back the first chip

6/25 x 5/24 = 1/20

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

60 for the first and 130 for the second

step-by-step explanation: