Y=6x-11 -2-3y=-7 what is the answer?

Mathematics

2 answers:

Feliz [49]3 years ago

8 0

-2-3(6x-11)=-7

-2-18x=-7
+2 +2

-18x=5 x=-18/5

nexus9112 [7]3 years ago

6 0

(2,1)
Hope this helps you out!

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For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp

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Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

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And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p = $\frac{1}{365^3}$

Expected value of days = np = $\frac{1}{365^2}$

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