3 years ago

5h−2(−8h+9), when h=8

Mathematics

1 answer:

Soloha48 [4]3 years ago

6 0

The answer is 177 because you have to distribute

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WILL GIVE BRAINLIEST!<br> Find the measure of ∠a. (Let b = 66°, and let c = 172°.)<br> m∠a = <br> °

storchak [24]

Answer: a = 122*

The three angles added together form a circle or 360*.

Set a + b + c = 360 and solve for a

a + 66 + 172 = 360

Subtract 238 from both sides to get a

a = 122*

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3 years ago

Translate the following verbal statement into an algebraic expression:

Nonamiya [84]

(x+17)(x+17)=

I believe this is what you are looking for friend

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Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

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4 years ago

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klio [65]

Answer:

true

Step-by-step explanation:

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Yes your correct but thats not a question

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