During a visit to the doctor, you are weighed on a very accurate scale. You are weighed five times and the five readings are ess
1 answer:
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The probability that all three randomly selected envelopes are yellow without replacement is 1/84.
<h3>What is a combination?</h3>It is an arrangement of a set of numbers from a total set where the order of the set is not relevant.
We have,
2 red envelopes
2 blue envelopes
2 green envelopes
3 yellow envelopes.
Total number of envelopes = 9
The probability that all three randomly selected envelopes are yellow without replacement.
=
= (3/9) x (2/8) x (1/7)
= (3x2x1)/(9x8x7)
= 1/84
Thus,
The probability that all three randomly selected envelopes are yellow without replacement is 1/84.
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Answer:
x = 13 and x = -3
Step-by-step explanation:
divide each side by 2 first and get:
(x-5)² = 64
take the square root of each side next and get:
x - 5 =
x - 5 = 8 and x - 5 = -8
x = 13 and x = -3