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Ghella [55]
3 years ago
5

Use set builder notation for {10,20,30,40...}

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0

Answer:

{ x : x = 10\times n, n ∈ N}

Step-by-step explanation:

{ x : x = 10\times n, n ∈ N}

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Answer: 4

Step-by-step explanation:

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For each of the following shapes, state whether or not it has reflection symmetry. If it does , draw the lines of symmetry it.
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You would have to draw a line across
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Find the zero of the following function: f(×)=(×-1)/(×-3)​
nlexa [21]

Answer:

\boxed{\sf \ \ x = 1 \ \ }

Step-by-step explanation:

Hello,

First of all we need to take x different from 3 as dividing by 0 is not allowed

then for x real different from 3

f(x)=0\\\\ \dfrac{x-1}{x-3}=0\\\\ x-1 = 0\\\\ x = 1

hope this helps

6 0
3 years ago
Read 2 more answers
Kamal wrote the augmented matrix below to represent a system of equations
ra1l [238]

Consider the operation is R_2\to -3R_2.

Given:

The augmented matrix below represents a system of equations.

\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]

To find:

Matrix results from the operation R_2\to -3R_2.

Step-by-step explanation:

We have,

\left[\left.\begin{matrix}1&0&1\\1&3&-1\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-9\\-2\end{matrix}\right]

After applying R_2\to -3R_2, we get

\left[\left.\begin{matrix}1&0&1\\-3(1)&-3(3)&-3(-1)\\3&2&0\end{matrix}\right|\begin{matrix}-1\\-3(-9)\\-2\end{matrix}\right]

\left[\left.\begin{matrix}1&0&1\\-3&-9&3\\3&2&0\end{matrix}\right|\begin{matrix}-1\\27\\-2\end{matrix}\right]

Therefore, the correct option is A.

3 0
3 years ago
Kris is 2 meters tall and casts a shadow
postnew [5]

The tree is 20 m tall .

Step-by-step explanation:

<h2>Given : </h2>
  • 2m tall tree cast a shadow 4 m long .

=> 2 m tree = 4 m long

If we find shadow of 1 m tall tree = 4/2

=> we have to find height of 10 m tall tree which is .. = 4/2 × 10 = > 20 m

6 0
2 years ago
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