3 years ago

I made a mistake.not sure how to delete?

Mathematics

1 answer:

Greeley [361]3 years ago

6 0

What do you mean, if you explain more maybe I can help

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I NEED THE ANSWER ASAP!!!!!

alexira [117]

Answer:

20 goody bags

Step-by-step explanation:

To solve problems like this, find the GCF of the two numbers.

6 0

3 years ago

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Suppose an automotive repair company wants to determine the current percentage of customers who keep up with regular vehicle mai

Nina [5.8K]

Answer: 1692

Step-by-step explanation:

Formula to find the sample size :

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Given : Confidence level : $(1-\alpha)=0.90$

⇒ significance level = $\alpha= 0.10$

z-value for 90% confidence interval (using z-table)= $z_{\alpha/2}=1.645$

Prior estimate of the population proportion (p) of customers who keep up with regular vehicle maintenance is unknown.

Let we take p= 0.5

Margin of error : E= 2%=0.02

Now, the required sample size will be :

$n=0.5(1-0.5)(\dfrac{1.645}{0.02})^2$

Simplify , we get

$n=(0.25)(6765.0625)=1691.265625\approx1692$

Hence, the required sample size = 1692

8 0

4 years ago

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What's the standard form of eight three million, twenty three thousand,seven

jenyasd209 [6]

Hi I think it is 83,023,007

4 0

3 years ago

Quantos que é -2 ao quadrado

Olegator [25]

No estoy segura e -2 ao quadrado esa es toda la pregunta

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3 years ago

Find the difference:<br> -3/5 - (-5/9)

Stella [2.4K]

Answer:

-2/45

Step-by-step explanation:

-3/5 - (-5/9)

Subtracting a negative is like adding

-3/5 + 5/9

Get a common denominator of 45

-3/5*9/9 + 5/9 *5/5

-27/45 + 25/45

-2/45

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3 years ago

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