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3 years ago

Find the product of 2.7 x 6.4 using partial products.

Mathematics

1 answer:

erica [24]3 years ago

5 0

you can do that repeated addition

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What is the circumference of a circle with a radius of 54 m

Verizon [17]

Answer:

339.42m

Step-by-step explanation:

Circumference of a circle=2x22/7x54

=339.42m

4 0

3 years ago

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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:

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

8 0

3 years ago

Simplify -x(4x^2 − 6x + 1)

12345 [234]

Answer:

$-4x^3+6x^2-x$

Step-by-step explanation:

1. Distribute the X across the equation: $-x(4x^2)=-4x^3\\$

2. $-x(-6x)=6x^2$

3. $-x(1)=-x$

3. $-4x^3+6x^2-x$

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2 years ago

Jake has $25.000 worth of property damage insurance and $1,000- deductible collision insuranceHe caused an accident that damaged

Flauer [41]

Answer:

I think b will be good for you

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4 years ago

All of the following have the same value except _____.

Semenov [28]

Answer:

Daily points, you have made my day!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

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3 years ago

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