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Vladimir79 [104]
3 years ago
6

-3(y+3)=2y+3 what does y equal?

Mathematics
1 answer:
netineya [11]3 years ago
3 0

[ Answer ]

Y = -12 / 5

[ Explanation ]


Expand:

-3y - 9 = 2y + 3


Add 9 to both sides:

-3y - 9 + 9 = 2y + 3 - 9


Simplify:

-3y = 2y + 12


Subtract 2y from both sides:

-3y - 2y = 2y + 12 - 2y


Simplify:

-5y = 12


Divide both sides by -5:

-5y / -5 = 12 / -5


Simplify:

Y = -12 / 5


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Answer:

Probability that exactly 5 of them favor the building of the health center is 0.0408.

Step-by-step explanation:

We are given that in a recent survey, 60% of the community favored building a health center in their neighborhood.

Also, 14 citizens are chosen.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 14 citizens

         r = number of success = exactly 5

        p = probability of success which in our question is % of the community

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<em>LET X = Number of citizens who favored building of the health center.</em>

So, it means X ~ Binom(n=14, p=0.60)

Now, Probability that exactly 5 of them favor the building of the health center is given by = P(X = 5)

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Therefore, Probability that exactly 5 of them favor the building of the health center is 0.0408.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

we know that

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