3 years ago

How to solve this equation? X^2=20

Mathematics

2 answers:

-Dominant- [34]3 years ago

6 0

Answer: x = 4.5

Step-by-step explanation:

x^2 = 20

√x = √20 -- find the square roots

x = 4.47 --> x = 4.5

sergejj [24]3 years ago

5 0

Answer:

You can rewrite it to figure out the square root of 20 which would give you the value 4.47214...

Step-by-step explanation:

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2 years ago

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likoan [24]

$\bf (\stackrel{x_1}{-3}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{0}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{0}-\stackrel{y1}{1}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{(-3)}}}\implies \cfrac{-1}{0+3}\implies -\cfrac{1}{3}$

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{1}=\stackrel{m}{-\cfrac{1}{3}}[x-\stackrel{x_1}{(-3)}]\implies y-1=-\cfrac{1}{3}(x+3) \\\\\\ y-1=-\cfrac{1}{3}x-1\implies y=-\cfrac{1}{3}x$