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3 years ago

Which ordered pair is in Quadrant II?

1 answer:

7 0

Quadrant two has the following form: (-x, y) Negative x and positive y
Using the process of elimination, you can determine that A, B, and D are incorrect. C is the correct answer.

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Find the next number in the following sequences

spin [16.1K]

Not sure about the others but
b) 8,192
the pattern is multiplying by 8 each time for b

4 0

3 years ago

Read 2 more answers

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)

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3 years ago

What is equivalent to 8/9 divided by 3/4

Pavel [41]

Answer:

Dividing by a fraction is the same as multiplying with the opposite of the fraction. 8/9 / 3/4=8/9×4/3=32/27=1 5/27.

Step-by-step explanation:

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3 years ago

6-2x??? NEED AN ANSWER ASAP!!!

JulijaS [17]

Answer:

2(3-x)

Step-by-step explanation:

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3 years ago

Select the tables that show a proportional relationship between x and y.

fomenos

Answer:

Bothell are proportional

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3 years ago