Solve for x Y=7x Y=56

Mathematics

2 answers:

FinnZ [79.3K]4 years ago

8 0

56=7x

56 divide by 7 is 8.

Free_Kalibri [48]4 years ago

6 0

Answer is 8.

So if Y= 56, then the real equation you would just have to plug in Y. So, the real equation is:

56 = 7x

Now divide both sides by 7.

X= 8

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$\text{We know that the tangent at any point on a circle is perpendicular}\\
\text{to the radius at that point.}\\
\\
\text{so first we find the equation of the line joining (0,0) and (3,4)}\\
\text{and then using the slope, we find the line perperndicular to it at (3,4)}\\
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\\
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\\
\text{so the slope of radius is }m=\frac{4}{3}.\\
\\
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\\
\text{so the slope of the perpendicular line would be}=-\frac{1}{4/3}=-\frac{3}{4}\\
\\
\text{So the equation of the tangent line has slope }-\frac{3}{4} \text{ and}\\
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$y-4=-\frac{3}{4}(x-3)\\
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\\
\Rightarrow y=-\frac{3}{4}x+\frac{9}{4}+4\\
\\
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\\
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