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3 years ago

Find the distance between A(0,1)and B(-4,6) to the nearest tenth

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

4 0

The difference between a zero and one, and b negative four and six is negative five and eight

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Find the area of the shaded region. Round your answer to the nearest TENTH.

ElenaW [278]

Answer:

10inchs

Step-by-step explanation:

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3 years ago

A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normall

Vlad1618 [11]

Answer: (2.54,6.86)

Step-by-step explanation:

Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.

We assume the incomes are normally distributed.

Mean income : $\mu=\dfrac{\sum^{10}_{i=1}x_i}{n}=\dfrac{47}{10}=4.7$

Standard deviation : $\sigma=\sqrt{\dfrac{\sum^{10}_{i=1}{(x_i-\mu)^2}}{n}}$

$=\sqrt{\dfrac{(1.1)^2+(0.2)^2+(1.9)^2+(1.6)^2+(2.1)^2+(0.5)^2+(2.05)^2+(0.45)^2+(3.3)^2+(1.7)^2}{10}}$

$=\dfrac{30.265}{10}=3.0265$

The confidence interval for the population mean (for sample size <30) is given by :-

$\mu\ \pm t_{n-1, \alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given significance level : $\alpha=1-0.95=0.05$

Critical value : $t_{n-1,\alpha/2}=t_{9,0.025}=2.262$

We assume that the population is normally distributed.

Now, the 95% confidence interval for the true mean will be :-

$4.7\ \pm\ 2.262\times\dfrac{3.0265}{\sqrt{10}} \\\\\approx4.7\pm2.16=(4.7-2.16\ ,\ 4.7+2.16)=(2.54,\ 6.86)$

Hence, 95% confidence interval for the true mean= (2.54,6.86)

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3 years ago

The graph shows the distance a car traveled, y, in x hours: what is the rise over run value for the relationship? The points on

Elodia [21]

Answer:

1/40

Step-by-step explanation:

everytime it goes over one it goes up 40

hope this helps

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3 years ago

Somebody please help I need to know how to do this for a big test.

Valentin [98]

No because 3 can go into 63 evenly and the denominator would be left the same.

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3 years ago

Tom Lynd is paid $290.00 a week. His employer deducts 7.65% for social security taxes and $54.10 for withholding taxes and pensi

Ulleksa [173]

Answer = $213.72
$\frac{7.65}{100} \times 290 = 22.185$
$290 - 22.185 - 54.10 = 213.715$
Net pay = $213.72 (Rounded off to 2 decimal points)

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3 years ago