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3 years ago

Find the circumference of a circle thats diameter is 6 m

Mathematics

2 answers:

tatiyna3 years ago

8 0

Answer: 18.85m

Step-by-step explanation:

jeka57 [31]3 years ago

6 0

Answer:

C = 6pi or approximately 18.84

Step-by-step explanation:

We can find the circumference from

C = pi *d where d is the diameter

C = pi* 6

We can approximate pi by 3.14

C = 3.14 *6

C =18.84

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3 years ago

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2 years ago

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Tcecarenko [31]

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Step-by-step explanation:

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3 years ago

Find the equation of a parabola that has a vertex of (-2,-3) and contains the point (4,1)

sweet [91]

$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{-2}{ h},\stackrel{-3}{ k})\\\\
-------------------------------\\\\
\begin{cases}
h=-2\\
k=-3
\end{cases}\implies y=a[x-(-2)]^2-3\implies y=a(x+2)^2-3
\\\\\\
\textit{we also know that }
\begin{cases}
x=4\\
y=1
\end{cases}\implies 1=a(4+2)^2-3
\\\\\\
4=36a\implies \cfrac{4}{36}=a\implies \cfrac{1}{9}=a
\\\\\\
therefore\qquad \boxed{y=\cfrac{1}{9}(x+2)^2-3}$

$\bf y=\cfrac{1}{9}(x+2)^2-3\implies y=\cfrac{1}{9}(x^2+4x+4)-3
\\\\\\
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4 years ago

Two rectangles have corresponding sides in the ratio of 3 : 4. The larger rectangle has one side measuring 6 inches. What is the

Irina-Kira [14]

Big Rectangle : Small Rectangle = 4 : 3

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3 years ago