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bazaltina [42]
2 years ago
10

-3х + бу = -27 3х – бу = 27

Mathematics
1 answer:
Gwar [14]2 years ago
3 0

Step-by-step explanation:

-3x + 6y = -27 |-1×|

3x - 6y = 27 |1×|

3x - 6y = 27

3x - 6y = 27

Two equations are similar.

X,Y element R

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Answer:

Step-by-step explanation:

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3 years ago
Find the area and perimeter of the square 6 meters
Mkey [24]
<h2>AREA</h2>

The formula for finding area of a square is:

length \times width

In a square, all the sides are the same. Each side is 6 meters long. Plug in 6 to the formula.

length \times width \rightarrow 6 \times 6

Multiply:

6 \times 6 = 36

The area of the square is 36 m²

<h2>PERIMETER</h2>

Perimeter is the distance around a shape. To find perimeter, you have to add all all the side lengths. The formula for finding perimeter is:

2(l) \times 2(w)

Remember that squares have 4 sides, and all length(s) and width(s) measure the same. The length and width measure the same. Plug in the numbers into the formula:

2(l) + 2(w) \rightarrow 2(6) + 2(6)

Simplify:

2(6) + 2(6) = 12 + 12

Add:

12 + 12 = 24

The perimeter of the square is 24 m

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3 years ago
How to do 764 divided by 4
lisov135 [29]
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3 0
3 years ago
Read 2 more answers
(MC 02.03) If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis, and rotated 180°, where would point A
Soloha48 [4]

A' would lie on point A (-4 , 1)

Step-by-step explanation:

Let us revise some transformations

1. If point (x , y) reflected across the x-axis , then its image is (x , -y)

2. If point (x , y) reflected across the y-axis , then its image is (-x , y)

3. If point (x , y) rotated about the origin by angle 180°, then its image

    is (-x , -y)

Parallelogram ABCD was reflected over the y-axis, reflected over the

x-axis, and rotated 180°

We need to know where would point A' lie

∵ The coordinates of point A are (-4 , 1)

∵ The parallelogram is reflected over x-axis

∴ The sign of y-coordinate of point A changed to opposite

∴ The image of point A is (-4 , -1)

∵ The parallelogram then reflected over the y-axis

∴ The sign of x-coordinate of point (-4 , -1) changed to opposite

∴ The image of point (-4 , -1) is (4 , -1)

∵ The parallelogram then rotated 180°

∴ The signs of the x-coordinate and the y-coordinate of point (4 , -1)

   changed to opposite

∴ The image (4 , -1) is (-4 , 1)

∴ A' is (-4 , 1)

∵ Point A is (-4 , 1)

∴ A' would lie on point A

A' would lie on point A (-4 , 1)

Learn more:

You can learn more about rotation in brainly.com/question/9720317

#LearnwithBrainly

3 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Which expression is equal to 5/√13?
Sladkaya [172]
Step-By-Step starts
\frac{5}{ \sqrt{13} }  \\  =  \frac{5 \times  \sqrt{13} }{ \sqrt{13}  \times  \sqrt{13} }  \\  =  \frac{5 \sqrt{13} }{13}
5 0
3 years ago
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