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3 years ago

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14. There are 12 marbles in a bag. Of these, Four of them are blue and the rest are green. You reach into the bag and take out t

wo marbles without looking. What is the probability that both marbles are blue? Round to the nearest whole percent.

1 answer:

strojnjashka [21]3 years ago

5 0

Answer:1/4

Step-by-step explanation: im sry if im wrong

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Anna007 [38]

Answer: x = 37.8

Step-by-step explanation: We start with triangle ABC with two sides given as 15 and 18. We shall make angle C the reference angle and thereby calculate the third side, line BC.

Since we have the opposite side as 15, and the adjacent side (which lies between the reference angle and the right angle) as 18, we can use the tangent of the angle C

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From our table of values/use of the calculator

Tan C = 39.8

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That takes us to triangle ECD, since the reference angle is known (39.8) and the opposite side is also given (31.5), we can now calculate the adjacent which is side x.

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Tan 39.8 = 31.5/x

when you cross multiply, x moves to the left hand side, while Tan 39.8 moves to the right hand side

x = 31.5/Tan 39.8

x = 31.5/0.8333

<u>x = 37.8</u>

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3 years ago