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3 years ago

Round 23.069 to the nearest ten

Mathematics

2 answers:

Travka [436]3 years ago

6 0

What value (number) is the tens place?

melisa1 [442]3 years ago

6 0

The answer is 20 because when you round to the nearest ten you take the 3 and since it is not higher than five you keep the tens place the same.

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PLZ HELP ME WITH THIS QUESTION!

garri49 [273]

C. Multiply by 3

Explanation

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3 years ago

Your friend pad for 1/4 of a bill. How many eighths is that

valkas [14]

1/4 is equivalent to 2/8

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3 years ago

Read 2 more answers

Help please 1. Solve the system of equations using substitution. Show your work in the workspace provided below.

katen-ka-za [31]

Answer:

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3 years ago

Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample

scoundrel [369]

Answer:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

Step-by-step explanation:

For this case we have the following info given:

$p = 0.26$ represent the proportion of the company's orders come from first-time customers

$n=158$ represent the sample size

And we want to find the following probability:

$p(\hat p >0.4)$

And we can use the normal approximation since we have the following two conditions:

1) np = 158*0.26 = 41.08>10

2) n(1-p) = 158*(1-0.26) = 116.92>10

And for this case the distribution for the sample proportion is given by:

$\hat p \sim N( p, \sqrt{\frac{p (1-p)}{n}})$

And we can use the z score formula given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

And if we find the parameters we got:

$\mu_p = 0.26$

$\sigma_p = \sqrt{\frac{0.26(1-0.26)}{158}} = 0.0349$

And we can find the z score for the value of 0.4 and we got:

$z = \frac{0.4-0.26}{0.0349}= 4.0119$

And we can find this probability:

$P(z>4.0119) = 1-P(z$

And if we use the normal standard table or excel we got:

$P(z>4.0119) = 1-P(z$

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3 years ago

Find the values for which the statement is true and mark them on the number line: |x|=x

kow [346]

Answer:

x ≥ 0

Step-by-step explanation:

The absolute value of something will always be the same number if the number is positive. Therefore, the values of x which make this true are x ≥ 0.

4 0

4 years ago