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PilotLPTM [1.2K]
2 years ago
10

Trying to find the initial value. help needed!!

Mathematics
1 answer:
m_a_m_a [10]2 years ago
7 0

Answer: dkoakdoaskdoakodkaosdkaosdaksdpkadsokfpakofspokfsdp]fokpadsfkopadsfokpfodskfpaskofpd the answer is 2 sorry.

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To assess the precision of a laboratory scale, we measure a block known to have a mass of 1 gram. we measure the block n times a
vlada-n [284]
<span>n = 5 The formula for the confidence interval (CI) is CI = m ± z*d/sqrt(n) where CI = confidence interval m = mean z = z value in standard normal table for desired confidence n = number of samples Since we want a 95% confidence interval, we need to divide that in half to get 95/2 = 47.5 Looking up 0.475 in a standard normal table gives us a z value of 1.96 Since we want the margin of error to be ± 0.0001, we want the expression ± z*d/sqrt(n) to also be ± 0.0001. And to simplify things, we can omit the ± and use the formula 0.0001 = z*d/sqrt(n) Substitute the value z that we looked up, and get 0.0001 = 1.96*d/sqrt(n) Substitute the standard deviation that we were given and 0.0001 = 1.96*0.001/sqrt(n) 0.0001 = 0.00196/sqrt(n) Solve for n 0.0001*sqrt(n) = 0.00196 sqrt(n) = 19.6 n = 4.427188724 Since you can't have a fractional value for n, then n should be at least 5 for a 95% confidence interval that the measured mean is within 0.0001 grams of the correct mass.</span>
8 0
2 years ago
10 points and brainliest
Rasek [7]

Answer:

y = (1/4)x+3

Step-by-step explanation:

7 0
3 years ago
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a group of hikers begin in an elevation of -29 feet below sea level. they travel up a mountain side until they were on an elevat
katovenus [111]

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-28

Step-by-step explanation:

7 0
3 years ago
PLZ HELP 15 POINTS
Hatshy [7]

Answer:

  see attached

Step-by-step explanation:

It's almost easier for you to do this than it is to post a question on Brainly.

All you need to do is type the relevant expressions. Once you have Desmos show you the vertex, writing the x= equation for that is all that is required to draw it.

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The graph of a system of equations with the same slope and the same y-intercepts will have no solution
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False.

Step-by-step explanation:

If they have the same slope and same intercept they will have the same line. So they will have infinite solutions.

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