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2 years ago

BRAINLY AND 100 POINTS NO LINKS What is the length of the line segment with endpoints (−3, −8) and (10, −8) ?

Mathematics

2 answers:

Pachacha [2.7K]2 years ago

6 0

Answer:

10 units is the answer.

12345 [234]2 years ago

5 0

Apply distance formula

√(x_2-x_1)²+(y_2-y_1)²
√(10+3)²+(-8+8)²
√13²+0
√13²
13units

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A laboratory tested 85 chicken eggs and found that the mean amount of cholesterol was 190 milligrams. Assume that the sample sta

Serjik [45]

Answer: $(182.356,\ 197.644)$

Step-by-step explanation:

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

Sample size : n=85

Critical value : $z_{\alpha/2}=1.96$

Sample mean : $\overline{x}=190$

Standard deviation : $\sigma=11.7$

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=190\pm(1.96)\dfrac{11.7}{\sqrt{9}}\\\\=190\pm7.644\\\\=(190-7.644,\ 190+7.644)=(182.356,\ 197.644)$

Thus, the 95% confidence interval for the true mean cholesterol content, μ, of all such eggs = $(182.356,\ 197.644)$

Hence, we conclude that the true population mean of amount of cholesterol lies between 182.356 and 197.644.

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3 years ago

Solve the system of equations. y=4x+8 x^2+7x-20

harina [27]

Can this help you our

3 0

4 years ago

How much is 2 3/4 cup plus 2 3/4 cup

Viefleur [7K]

Answer:

5.5 US cups

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

An extraordinarily large fish was pulled in by a group of fishermen. It weighed 41 lbs and 8 oz. Find the fish’s weight in ounce

Virty [35]

Answer:

664

Step-by-step explanation:

41 lbs and 8 oz = 41.5 lbs bc 8 oz is half a lbs

so 41.5*16=664

3 0

3 years ago

In a class of 24 students, 7 students have 2 brothers or sisters. 4 students have 1 brother or sister. 3 students do not have an

Elanso [62]

Answer:

Samdy's statement is FALSE, total number of brothers and sisters is 52

Step-by-step explanation:

To organize our information we should draw a table, where group the students by how many siblings they have, and then calculate the total number of siblings.

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2 years ago