Mathematics: What is the x intercept of the equation -3y=7x-21?

What is the x intercept of the equation -3y=7x-21?

Ответ:

Ully4559

12.03.2022

Mathematics

x = 3 → (3, 0)

to find the x- intercept let y = 0 in the equation

7x - 21 = 0

add 21 to both sides

7x = 21

divide both sides by 7

x = $\frac{21}{7}$ = 3 → x- intercept

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Ответ:

tatayanamarie5909

20.10.2020

Mathematics

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius=\frac{diameter}{2}\\
h=height\\
----------\\
diameter = d\\
r=\frac{d}{2}
\end{cases}\implies V=\pi \left( \frac{d}{2} \right)^2 h
\\\\\\
V=\pi \left( \frac{d^2}{2^2} \right)h\implies V=\cfrac{\pi d^2 h}{4}\implies 4V=\pi d^2 h\implies \cfrac{4V}{\pi d^2}=h$

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What is the x intercept of the equation -3y=7x-21?

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