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Brut [27]
3 years ago
6

Is y^2 +6y +36 a perfect trinomial

Mathematics
2 answers:
Elena-2011 [213]3 years ago
7 0

Answer:

hi

Step-by-step explanation:

it is not a prfect trinomial also it is not perfect square it is just a trionimial

Daniel [21]3 years ago
7 0

Answer:

y^2 + 6y + 36 is not a perfect trinomial

Step-by-step explanation:

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<h2>Answer with explanation:</h2>

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x= 120

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The null and the alternative hypotheses if you want to test if p is greater than or equal to 0.85 will be :-

Null hypothesis : H_0: p\geq0.85   [ it takes equality (=, ≤, ≥) ]

Alternative hypothesis : H_1: p  [its exactly opposite of null hypothesis]

∵Alternative hypothesis is left tailed, so the test is a left tailed test.

Test statistic : z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

z=\dfrac{0.83-0.85}{\sqrt{\dfrac{0.85(1-0.85)}{144}}}\\\\=-0.561232257678\approx-0.56

Using z-vale table ,

Critical value for 0.05 significance ( left-tailed test)=-1.645

Since the calculated value of test statistic is greater than the critical value , so we failed to reject the null hypothesis.

Conclusion : We have enough evidence to support the claim that p is greater than or equal to 0.85.

8 0
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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

3 0
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