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arlik [135]
3 years ago
14

Find the distance between the points (2,1), (-3,6)

Mathematics
1 answer:
topjm [15]3 years ago
5 0

Answer:

5 times the square root of 2 or 7.071

Step-by-step explanation:

Hope it helps!

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namely, let's rationalize the denominator in the fraction, for which case we'll be using the <u>conjugate</u> of that denominator, so we'll multiply top and bottom by its <u>conjugate</u>.

so the denominator is 5 + i, simply enough, its conjugate is just 5 - i, recall that same/same = 1, thus (5-i)/(5-i) = 1, and any expression multiplied by 1 is just itself, so we're not really changing the fraction per se.

\bf \cfrac{2}{5+i}\cdot \cfrac{5-i}{5-i}\implies \cfrac{2(5-i)}{\stackrel{\textit{difference of squares}}{(5+i)(5-i)}}\implies \cfrac{2(5-i)}{\stackrel{\textit{recall }i^2=-1}{5^2-i^2}}\implies \cfrac{2(5-i)}{25-(-1)} \\\\\\ \cfrac{2(5-i)}{25+1}\implies \cfrac{2(5-i)}{26}\implies \cfrac{5-i}{13}

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If Gary is 11 years old how old are each of the family members
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Step-by-step explanation:

if you need the correct answer say the full question you

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Step-by-step explanation:

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