Answer:
Matlab code is:
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>> ![Vc=[M(2,:) M(:,3)']](https://tex.z-dn.net/?f=Vc%3D%5BM%282%2C%3A%29%20M%28%3A%2C3%29%27%5D)
Explanation:
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1 7 13 19 25
3 9 15 21 27
5 11 17 23 29
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>> ![Vc=[M(2,:) M(:,3)']](https://tex.z-dn.net/?f=Vc%3D%5BM%282%2C%3A%29%20M%28%3A%2C3%29%27%5D)

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The code is tested and is correct. If you put a semi colon ' ; ' at the end of every statement then your answer will be calculated but matlab doesn't show it until you ask i.e. typing the variable (Va, Vb, Vc )and press enter.
Hi,
the program is as follows
___________________________________________________________
import java.io.*;
class doubleval
{
public static void main()throws IOException
{
DataInputStream dt=new DataInputStream(System.in);
System.out.println("Enter NUMBER WHOSE DOUBLE U WANT TO PRINT");
int n=Integer.parseInt(dt.readLine());
for(int i=n;i<=100;i=2*i)
{
System.out.println(i);
}
}
}
Answer:

Explanation:
d(x) = -2x - 6
to find the inverse of a function, you need to follow these steps:
1. set d(x) = y
2. interchange the variables, so y becomes x and x becomes y
3. solve the equation for y
<u>step 1:</u> set d(x) = y
y = -2x -6
<u>step 2:</u> interchanging the variables
y = -2x - 6 turns into x = -2y - 6
<u>step 3:</u> solving for y
x = -2y - 6 < add 6 to both sides to get rid of it on the right
x + 6 = -2y < divide both sides by -2 to get y alone
x + 6 / -2 = 
-2y / -2 = y
= y
so the inverse of the function is 
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