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GrogVix [38]
3 years ago
11

What is a 90 degree counter clockwise rotattion on a graph

Mathematics
1 answer:
mars1129 [50]3 years ago
7 0
<h2><u>Answer:</u></h2><h2>90 Degree Rotation</h2><h2>When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.</h2>

<h2><u>Thank you</u></h2><h2><u>sunshinemadison101</u></h2>

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Find the solution for the system of linear equations by substitution: 2x - y = 3 y − x = 1
Leviafan [203]

The solution for the system of linear equations 2x- y = 3 and y - x = 1 are x = 4 and y = 5

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change, slope or gradient

<h3>How to determine the solution to the system?</h3>

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

2x- y = 3

y - x = 1

Make y the subject in the second equation, by adding x to both sides of the equation

y - x + x = x + 1

This gives

y = x + 1

Substitute y = x + 1 in 2x- y = 3

2x- x - 1 = 3

Evaluate the like terms

x = 4

Substitute x = 4 in y = x + 1

y = 4 + 1

Evaluate

y = 5

Hence, the solution for the system of linear equations 2x- y = 3 and y - x = 1 are x = 4 and y = 5

Read more about system of linear equations at

brainly.com/question/14323743

#SPJ1

7 0
2 years ago
What is the value of (4 minus 2) cubed minus 3 times 4?<br> Negative 20
pogonyaev

Answer:

-4

Step-by-step explanation:

(4-2)³ = 8

so 8 - 3 x 4

is equal to -4

4 0
3 years ago
Mina wore a pedometer on her foot for 3 hours. She recorded the number of steps she walked for each hour. The first hour she too
Sergeu [11.5K]

Answer:

Mina took 2,986 steps on the third hour.

Step-by-step explanation:

With the information provided, you know that Mina took a total of 9,245 steps in three hours and as you know the quantity of steps she took on the first and second hour, you can subtract the steps she took on the first and second hour from the total amount of steps to determine the steps she took on the third hour:

9,245-2,387-3,872=2,986

According to this, the answer is that Mina took 2,986 steps on the third hour.

7 0
2 years ago
I put this into my calculator but it keeps coming out as "error" :/ not sure if it's just my calculator or something with the pr
Triss [41]
Your calculator says error because you cant have a square root of a negative number because there is no solution to that maybe recheck your equation and try again
8 0
3 years ago
IHELP if 1 out of 5 animals are cats then how many cats are there in an ecosystem of 200 animals???​
mote1985 [20]
There are 40 cats in the ecosystem.

You set 1/5 equal to x/200. Then you cross multiply the fractions to get 5x=200. You divide both terms by 5 to get x, which equals 40.

3 0
3 years ago
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