$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=\stackrel{r\times 3}{3r}
\end{cases}\implies A=\pi (3r)^2
\\\\\\
A=\pi (3^2r^2)\implies A=9(\pi r^2)$

notice, if the original area was πr², then the new area has a factor in front of it, that much.

8 0

2 years ago

Which expression is equivalent to (-3)x+ (-3) (-12)?

julia-pushkina [17]

Answer:

Step-by-step explanation:

gimme brainliest

6 0

2 years ago

Louisa states that the solution to the equation One-fourth x minus 3 = StartFraction 3 Over 8 EndFraction x + 4 is x = 56. She v

Gnom [1K]

Answer:

Step-by-step explanation:

The answer is A

6 0

2 years ago

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