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Gala2k [10]
3 years ago
5

Tell which of the ordered pairs is a solution to the equation y=1/2x+2 (0,1) (2,2) (4,4) or (-2,1)

Mathematics
1 answer:
Softa [21]3 years ago
4 0

y = 1/2 x+2

y = 0 +2

(0,2)

y = (1/2)* 2 +2

(2,3)

y =1/2*4+2

(4,4)   Yes!

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Solve the system with elimination. {2x-y=2, -5x+4y=-2
DaniilM [7]

Answer:

{x=2,y=2

Step-by-step explanation:

Equation 1:

Multiply both sides of the equation by a coefficient

{ 4(2x-y)=2*4

-5x+4y=-2

Apply Multiplicative Distribution Law

{8x-4y=2*4,-5x+4y=-2

8x-4y+(-5x+4y)=8+(-2)

Remove parentheses

8x-4y-5x+4y=8-2

Cancel one variable

8x-5x=8-2

Combine like terms

3x=8-2

Calculate the sum or difference

3x=6

Divide both sides of the equation by the coefficient of the variable

x=6/3

Calculate the product or quotient

x=2

Equation two:

{-5+4y=-2, x=2

-5*2+4y=-2

Calculate the product or quotient

-10+4y =-2

Reduce the greatest common factor (GCF) on both sides of the equation

-5+2y=-1

Rearrange unknown terms to the left side of the equation

2y=-1+5

Calculate the sum or difference

2y=4

Divide both sides of the equation by the coefficient of the variable

y=4/2

y=2

Hope this helps!!

6 0
2 years ago
The length of a rectangle is three more than it’s width. the perimeter is 86 cm. Find the length and width of the rectangle. Wri
Mariana [72]
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6 0
3 years ago
Find the translation rule and the scale factor of the dilation that transforms Ol to Ol'.
lisov135 [29]

Answer:

  C  (x, y) -> (x + 7, y + 8); scale factor = 3

Step-by-step explanation:

The translation can be found by subtracting the coordinates of the original center from those of the center of the image. The scale factor will be the ratio of the radii.

__

<h3>translation</h3>

We note the center coordinates are I(-3, -6) and I'(4, 2). Then the translation is ...

  I' -I = (4, 2) -(-3, -6) = (4 +3, 2 +6) = (7, 8)

  (x, y) ⇒ (x +7, y +8)

<h3>scale factor</h3>

The radius of each circle can be found by counting the grid squares from the center to the circle. It works best to do this along a horizontal or vertical line.

The radius of circle I is 2; the radius of circle I' is 6. The scale factor is ...

  scale factor = 6/2 = 3

4 0
2 years ago
In horse​ racing, a trifecta is a bet that the first three finishers in a race are​ selected, and they are selected in the corre
eduard

Answer:

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because three horses is a combination of horses

7 0
3 years ago
If R = 25 cm and S = 7 cm, what is the length of T?
Yakvenalex [24]
I think you need to post a graphic.
6 0
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