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3 years ago

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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What is 7(-h -3) = -3(-h+4) what does it equal

prohojiy [21]

Answer: 4

Step-by-step explanation:

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3 years ago

For each of the following shapes, state whether or not it has reflection symmetry. If it does , draw the lines of symmetry it.

Effectus [21]

You would have to draw a line across

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2 years ago

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