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mr_godi [17]
2 years ago
14

Find the length of side x in simplest radical form with a rational denominator.

Mathematics
1 answer:
Leto [7]2 years ago
7 0
<h3>Answer:  2\sqrt{5}</h3>

======================================================

Explanation:

Both legs are the same length, as indicated by the tickmark.

  • a = \sqrt{10}
  • b = \sqrt{10}
  • c = x

Use the pythagorean theorem to solve for x

a^2+b^2 = c^2\\\\( \sqrt{10} )^2 + ( \sqrt{10} )^2 = x^2\\\\10 + 10 = x^2\\\\x^2 = 20\\\\x = \sqrt{20}\\\\x = \sqrt{4*5}\\\\x = \sqrt{4}*\sqrt{5}\\\\x = 2\sqrt{5}\\\\

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A relation is a function if it has only One y-value for each x-value. Functions f(2/3)=2/9 for f(x)=2x²-4x+2 and f(1/4)==-21/4 for  f(x)=4x²+2x-6

<h3>What is a function?</h3>

A relation is a function if it has only One y-value for each x-value.

The given function is

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Put x=2/3

f(2/3)=2(2/3)²-4(2/3)+2

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=8/9-8/3+2

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=1/4+1/2-6

= 1+2-24/4

f(1/4)==-21/4

Hence functions f(2/3)=2/9 for f(x)=2x²-4x+2 and f(1/4)==-21/4 for  f(x)=4x²+2x-6

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brainly.com/question/21145944

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