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makkiz [27]
3 years ago
7

What is a variable?

Computers and Technology
1 answer:
aleksandr82 [10.1K]3 years ago
5 0
Answer. D: a value that looks loads when the program runs.


Explanation:

In programming, a variable is a value that can change, depending on conditions or on information passed to the program. Typically, a program consists of instruction s that tell the computer what to do and data that the program uses when it is running.
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Find the inverse function of f(x)= 1+squareroot of 1+2x
Svetllana [295]

Answer:

Therefore the inverse function of  f(x)=1+\sqrt{1+2x} is \frac{x^2-2x}{2}

Explanation:

We need to find the inverse of function f(x)=1+\sqrt{1+2x}

Function Inverse definition :

\mathrm{If\:a\:function\:f\left(x\right)\:is\:mapping\:x\:to\:y,\:then\:the\:inverse\:functionof\:f\left(x\right)\:maps\:y\:back\:to\:x.}

y=1+\sqrt{1+2x}\mathrm{Interchange\:the\:variables}\:x\:\mathrm{and}\:y

x=1+\sqrt{1+2y}

\mathrm{Solve}\:x=1+\sqrt{1+2y}\:\mathrm{for}\:y

\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}

1+\sqrt{1+2y}-1=x-1

Simplify

\sqrt{1+2y}=x-1

\mathrm{Square\:both\:sides}

\left(\sqrt{1+2y}\right)^2=\left(x-1\right)^2

\mathrm{Expand\:}\left(\sqrt{1+2y}\right)^2:\quad 1+2y

\mathrm{Expand\:}\left(x-1\right)^2:\quad x^2-2x+1

1+2y=x^2-2x+1

\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}

1+2y-1=x^2-2x+1-1

\mathrm{Simplify}

2y=x^2-2x

\mathrm{Divide\:both\:sides\:by\:}2

\frac{2y}{2}=\frac{x^2}{2}-\frac{2x}{2}

\mathrm{Simplify}

y=\frac{x^2-2x}{2}

Therefore the inverse function of f(x)=1+\sqrt{1+2x} is \frac{x^2-2x}{2}

4 0
3 years ago
In python 3.17 LAB: Convert to dollars
krok68 [10]

To convert the inputs to dollars and cents, we make use of a combination of multiplication and addition.

The program written in Python where comments are used to explain each line is as follows:

<em />

<em>#This gets input for the number of quarters</em>

quarters = int(input("Quarters: "))

<em>#This gets input for the number of dimes</em>

dimes = int(input("Dimes: "))

<em>#This gets input for the number of nickels</em>

nickels= int(input("Nickels: "))

<em>#This gets input for the number of pennies</em>

pennies= int(input("Pennies: "))

<em>#This converts the amount to dollars and cents</em>

dollars = quarters * 0.25 + dimes * 0.10 + nickels * 0.05 + pennies * 0.01

<em>#This prints the amount to 2 decimal places</em>

print("Amount ${:.2f}".format(dollars))

Read more about Python programs at:

brainly.com/question/22841107

7 0
2 years ago
Matts has finished running some security automation scripts on three newly deployed Linux servers. After applying intrusion dete
gizmo_the_mogwai [7]

Answer: CPU

Explanation:

The management dashboard refers to the tool that's used in the presentation of the vital k management KPIs in a single place, which is efficiently managed in order to make faster and better decisions.

Based on the information given, after the application of intrusion detection, virus, and malware protection on the Linux images, he will notices an increase in CPU on his server management dashboard.

Therefore, the correct option is C.

5 0
3 years ago
Given numrows and numcols, print a list of all seats in a theater. rows are numbered, columns lettered, as in 1a or 3e. print a
trapecia [35]

/* package whatever; // don't place package name! */

import java.util.*;

import java.lang.*;

import java.io.*;

class NestedLoops {

public static void main (String [] args) {

int numRows = 4;

int numCols = 5;

int i,j;

char ch = 'A';

// Note: You'll need to declare more variables

/* Your solution goes here */

for ( i = 0; i < numRows; i++) { // Outer loop runs for numRows times

for ( j = 0; j < numCols; j++) { // Inner loop runs for numCols times

System.out.print(i+1);

System.out.print((char)(ch+j));

System.out.print(" ");

}

}

System.out.println("");

return;

}

}

8 0
3 years ago
If you want to selectively darken an area of an image you could use the
DerKrebs [107]
Create an adjustment layer and create a hue and saturation layer. You'll see sliders so adjust them to your liking. next select a layer mask and fill it will black. then select which areas you want to darken and use the wand tool. Apply a gradient mask if you want. 
5 0
3 years ago
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