5x-7y=-2 -5x-10y=-15

Mathematics

1 answer:

seraphim [82]3 years ago

8 0

{5x-7y=-2

<u>{-5x-10y=-15 </u>(+)

<em> </em>-17y=-17 /:(-17)

y=1

<em /><em>5x-7 *1=-2</em>

<em />5x-7=-2 /+7

5x=5 /:5

x=1

<u>Solution:</u> (1; 1)

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Suppose a company produces report indicates that the surveyed distance between two points is 1200 feet with a margin of error of

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<h2>Hello!</h2>

The answers are:

$MaximumDistance=1200.1ft\\MinimumDistance=1199.9ft$

Since we are given the margin of error and it's equal to ±0.1 feet, and we know the surveyed distance, we can calculate the maximum and minimum distance. We must remember that margin of errors usually involves and maximum and minimum margin of a measure, and it means that the real measure will not be greater or less than the values located at the margins.

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$MaximumDistance=ActualDistance+0.1feet\\\\MaximumDistance=1200feet+0.1feet=1200.1feet$