BRAINLIEST 20PTSSSSSSS!!!

13 divided by 2? im too lazy to get my calculator

ratelena [41]

Answer:

6.5 xD

Step-by-step explanation:

5 0

3 years ago

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Jessica is printing invitations to a graduation party she needs to print 250 invitations on pursuit of paper she was only able t

zaharov [31]

Answer:

she need to order 5 more packages

Step-by-step explanation:

she has to print 250 invitations

and she has 5 packs of 25 sheets each pack

To know how many papers are we have to multiply the number of packages by the number of sheets that each package has

5 * 25 = 125

To know how many papers they need to buy, we have to subtract 125 from the amount of invitations she has to print

250 - 125 = 125

so she is missing 125 sheets of paper

To know how many packages are we have to divide this number by 25 which are the sheets that each package brings

125 / 25 = 5

she need to order 5 more packages

4 0

3 years ago

You are interested in estimating the the mean weight of the local adult population of female white-tailed deer (doe). From past

alisha [4.7K]

Answer:

$n=(\frac{2.33(19)}{7})^2 =39.996 \approx 40$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean

$\mu$ population mean

$\sigma=19$ represent the assumed population standard deviation

n represent the sample size (variable of interest)

Confidence =0.98 or 98%

Me=0.07 represent the margin of error for this case

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (1)

And on this case we have that ME =7 and we are interested in order to find the value of n, if we solve n from equation (1) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (2)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.01,0,1)", and we got $z_{\alpha/2}=2.33$ , replacing into formula (2) we got:

$n=(\frac{2.33(19)}{7})^2 =39.996 \approx 40$

So the answer for this case would be n=40 rounded up to the nearest integer

6 0

3 years ago

Simplify the rational expression. 3x^3+4x+5/x+3

ivolga24 [154]

Answer:

hey its 8

Step-by-step explanation:

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3 0

2 years ago

The Nelsons own a home whose market value is $132,000. Their municipality taxes at 70% and the rate is 80 mills or $80 per thous

MrRa [10]

To answer this question you will need to calculate what 70% of the value of the house is because this is what the tax is based on.

0.7 x $132000 = $92400 tax basis

They pay $80 per $1000 in tax basis, so $92400 would be 92.4 groups of $1000.

$80 x 92.4 = $7424 in taxes based on an 80 mills tax rate.

6 0

3 years ago

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