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3 years ago

8

Wench model represents the factors of x^2+9x+8?

1 answer:

LenaWriter [7]3 years ago

3 0

I don't know go to the photo math or others xxx2

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-p + 4p = 6 prob the last one for now i think

Irina-Kira [14]

Answer:

p = 2

Step-by-step explanation:

First, simplify:

3p = 6

Then, divide 3 on both sides:

p = 2

Hope this helps ^^

8 0

2 years ago

Read 2 more answers

Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of education the students r

BaLLatris [955]

<h2>Answer with explanation:</h2>

Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.

Given : Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of education the students receive.

Set hypothesis to test :

$H_0: p=0.39\\\\H_a :p\neq0.39$

Sample size : n= 1055

Sample proportion : $\hat{p}=\dfrac{466}{1055}=0.441706161137\approx0.44$

Critical value for 95% confidence : $z_{\alpha/2}=1.96$

Confidence interval : $\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}$

$0.44\pm (1.96)\sqrt{\dfrac{0.39(1-0.39)}{1055}}\\\\0.44\pm0.0299536805135\\\\0.44\pm0.03\\\\=(0.44-0.03, 0.44+0.03)\\\\=(0.41,\ 0.47)$

Since , Confidence interval does not contain 0.39.

It means we reject the null hypothesis.

We conclude that 95% confidence interval represents evidence that parents' attitudes toward the quality of education have changed.

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3 years ago

If you wanted to know the difference between the highest paid employee and the lowest paid employee, would you look at the mean,

katovenus [111]

You would use mean.

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2 years ago

What is the surface area?

Semenov [28]

Answer:

of what?

Step-by-step explanation:

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2 years ago

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givi [52]

Bare with me a minute, I am still trying to figure it out. Here is what I have so far.

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2 years ago