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3 years ago

14

Chanelle selects a marble from a container and then returns it to the container. When she does this 3 times, the probability of

choosing a red marble all 3 times is 1/216. Based on this information, what is the probability of Chanelle choosing a red marble the first time she selects a marble?

1 answer:

astraxan [27]3 years ago

3 0

Answer:

1 ÷ 6

Step-by-step explanation:

Let us assume the probability of the red marble for selecting it first time be x

And, it is to be done 3 times

that means

= 1 ÷ x × 1 ÷ x × 1 ÷ x

This equivalent to = 1 ÷ 216

And the 216 could be calculated by multiplied 6 3 times i.e.

= 6 × 6 × 6

= 216

So, the probability for selecting it for a first time is

= 1 ÷ 6

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Confusion...help please

kifflom [539]

Given:

In triangle KLM, KL = 123 cm and measure of angle K is 35 degrees.

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The length of the side KM to the nearest tenth of a centimeter.

Solution:

In a right angle triangle,

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In the given right triangle KLM,

$\cos K=\dfrac{KM}{KL}$

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$0.819152=\dfrac{KM}{123}$

Multiply both sides by 123.

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SVETLANKA909090 [29]

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Step-by-step explanation:

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