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3 years ago

13

9+^8*0 is what I need help

2 answers:

yulyashka [42]3 years ago

8 0

Answer:

0

Step-by-step explanation:

anythibg times zero equals 0

Nadya [2.5K]3 years ago

4 0

Are you doing 9 to the power of (8x0)? If so, anything to the power of 0 will be one (ex. 9^(8x0) = 9^0 = 1

If you’re doing 9+(8x0), you do PEMDAS (parenthesis, exponents, multiplication, Division, addition, subtraction). We start with 8x0 which = 0 and the. 9+0 which would then be 9

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Using the simple random sample of weights of women from a data set, we obtain these sample statistics: nequals45 and x overbar

Tomtit [17]

Answer: (141.1, 156.48)

Step-by-step explanation:

Given sample statistics : $n=45$

$\overline{x}=148.79\text{ lb}$

$\sigma=31.37\text{ lb}$

a) We know that the best point estimate of the population mean is the sample mean.

Therefore, the best point estimate of the mean weight of all women = $\mu=148.79\text{ lb}$

b) The confidence interval for the population mean is given by :-

$\mu\ \pm E$ , where E is the margin of error.

Formula for Margin of error :-

$z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha=1-0.90=0.1$

Critical value : $z_{\alpha/2}=z_{0.05}=\pm1.645$

Margin of error : $E=1.645\times\dfrac{31.37}{\sqrt{45}}\approx 7.69$

Now, the 90% confidence interval for the population mean will be :-

$148.79\ \pm\ 7.69 =(148.79-7.69\ ,\ 148.79+7.69)=(141.1,\ 156.48)$

Hence, the 90% confidence interval estimate of the mean weight of all women= (141.1, 156.48)

3 0

3 years ago

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lions [1.4K]

Since m<A ≅ m<C, AB = BC.

And...

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Since AC=x, AC=6.

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3 years ago

Read 2 more answers

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Bas_tet [7]

Answer:

20%

Step-by-step explanation:

30:6=5

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Step-by-step explanation:

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