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3 years ago

HELPPP PLEASE THANK UUU :))))

Mathematics

2 answers:

valentinak56 [21]3 years ago

4 0

Answer: 525

Step-by-step explanation:

3/4

x/700

irinina [24]3 years ago

3 0

Answer is 525 .........

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Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students'

Andru [333]

Answer:

a) 5.81

b) 25

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 5

Population standard deviation, σ = 13 milligrams

a) standard deviation of Juan's mean result

$\text{Standard error} = \dfrac{\sigma}{\sqrt{n}} = \dfrac{13}{\sqrt{5}} = 5.81$

5.81 is the standard deviation of Juan's mean result.

b) sample size such that the standard deviation reduces to 2.6

$\text{Standard error} = \dfrac{\sigma}{\sqrt{n}}\\\\\Rightarrow \dfrac{13}{\sqrt{n}} = 2.6\\\\\Rightarrow \sqrt{n} = \dfrac{13}{2.6} = 5\\\\\Rightarrow n = 25$

Thus, Juan has to repeat the experiment 25 times to reduce the standard deviation to 2.6

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3 years ago

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Likurg_2 [28]

Answer:

18 gallons / 1 mintue

Step-by-step explanation:

So if for 2 minutes we have 36 gallons, then for one minute we will have 18 gallons.

This means the answer is the third one:

18 gallons / 1 mintue

(edit, ty for Brainliest!)

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What are the coordinates of side HI?

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It’s B cuz like x is the sideway line in

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Step-by-step explanation:

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Maurinko [17]

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