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algol13
2 years ago
6

Find the X-intercepts : 0=2(x+2)^2-5

Mathematics
1 answer:
m_a_m_a [10]2 years ago
7 0
It should be no solution
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2 years ago
The probability that a certain kind of component will survive a shock test is 3/4. Find the probability that exactly 2 of the ne
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Answer:

Therefore the required probability is =\frac{27}{128}

Step-by-step explanation:

The probability of success is \frac{3}{4}

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P(x=r)=^nC_rq^{n-r}p^r        p =the probability of success and q = the probability failure.

p=\frac{3}{4}     and q=(1-\frac{3}{4})=\frac{1}{4}

\therefore P(X=2)=^4C_2(\frac{1}{4} )^2(\frac{3}{4} )^2

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                  =\frac{27}{128}

Therefore the required probability is =\frac{27}{128}

3 0
3 years ago
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