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3 years ago

What is the area of a circle whose diameter is 22?

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

diameter 22 equals radius of 11

Area = PI * radius^2 = PI * 11 * 11

Area = 380.1327110844

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Giá trị x thoả mãn x(x − 3) + x − 3 =0 là

svet-max [94.6K]

Here we will use the trial and error method.

We will try putting different values of x.

$\begin{gathered}\\ \sf\longmapsto 1(1-3)+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto (-2)+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2-2=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -4≠0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 2(2-3)+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 2(-1)+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -3≠0\end{gathered}$

<h2>Again,</h2><h3>x=3</h3>

$\begin{gathered}\\ \sf\longmapsto 3(3-3)+3-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 3(3-3)=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 3×0=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 0=0\end{gathered}$

<h3>☣Hence, The value of X as 3 satisfies the equation!</h3>

5 0

3 years ago

5x-2y=30 complete the missing solution to the equation

astra-53 [7]

Answer:

I would have to go with x = 8 and y = 5, meaning the solution is (8, 5).

Step-by-step explanation:

$5x - 2y = 30$

$5(8) - 2(5) = 30$

$40 - 10 = 30$

$30 = 30$

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2 years ago

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What value of n makes the equation 2(n+1)=-3(n-8)+3 true

LekaFEV [45]

<h3>Solution:</h3>

$2(n + 1) = - 3(n - 8) + 3 \\ = > 2n + 2 = - 3n + 24 + 3 \\ = > 2n + 3n = 24 + 3 - 2 \\ = > 5n = 25 \\ = > n = \frac{25}{5} \\ = > n = 5$

<h3>Answer:</h3>

<h3>Hope it helps.</h3>

ray4918 here to help

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3 years ago

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Josie is creating 5 music playlists for her dance classes. She will use a total of 60 songs. Each playlist will have 7 older son

melisa1 [442]

Answer: pls answer

Step-by-step explanation:

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2 years ago

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Two friends share 1/3 of a pitcher of

Oxana [17]

Answer:

⅙ pitcher

Step-by-step explanation:

½ of ⅓ pitcher = ½ × ⅓ pitcher = ⅙ pitcher

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2 years ago