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crimeas [40]
3 years ago
12

Which number line shows the solution to 5 + (−5)?

Mathematics
2 answers:
alex41 [277]3 years ago
7 0

Answer:

first one is A  and the second one is B.

Step-by-step explanation:

Yakvenalex [24]3 years ago
5 0

Answer:

b on both

Step-by-step explanation:

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The three ways are substitution, elimination, and graphing
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3 years ago
An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa
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Answer:

a) 95% confidence interval estimate of the true weight is (3.026, 3.274)

b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

  • M is the mean of five successive weightings (3.150)
  • ME is the margin of error from the mean

And margin of error (ME) can be calculated using the formula

ME=\frac{t*s}{\sqrt{N} } where

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Using the numbers 95% confidence interval estimate of the true weight is:

3.150±\frac{2.776*0.1}{\sqrt{5} }≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150±\frac{4.604*0.1}{\sqrt{5} }≈3.150±0.206

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3 years ago
Clancey and Ethan are starting new books. So far, Clancey has read 1/4 of his book, which has 240 total pages and Ethan read 2/3
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Answer:

Step-by-step explanation:

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3 years ago
Helppppppppppp!!!!!
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Answer:

n ^{2}  + 7n + 1 \\ where \: the \: value \: of \: n =  - 3 \\ n ^{2}  + 7n + 1 \\  =  - 3^{2}  + 7( - 3) + 1  \\  =  - 9 - 21 + 1 \\  =  - 29

4 0
3 years ago
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Answer:

longitudinal profile depicts the changes in elevation as a function of distance

Step-by-step explanation:

Hope this helps :)

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