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Kamila [148]
3 years ago
11

Solve the system of equations by elimination. -x + y = -13 -8x - 4y = -8

Mathematics
2 answers:
ivann1987 [24]3 years ago
4 0

Answer:

x=5 and y=−8

Hope this helps

LiRa [457]3 years ago
4 0
Sorry if it’s confusing but it’s x=21 and y=8

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8 0
4 years ago
A polygon has the following coordinates: A(3,1), B(5,3), C(2,5), D(-1,5), E(-4,3), F(-2,1). Find the length of DC.
nlexa [21]

To find the length of a line given two points, we are going to use the distance formula, which is defined below:

D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

((x_1, y_1) and (x_2, y_2) are the two points)


The points in this problem are (2, 5) and (-1, 5). We can find the distance of DC by substituting these values into the distance formula and simplifying, as shown below:

D = \sqrt{(-1 - 2)^2 + (5 - 5)^2

  • Substitute values into formula

D = \sqrt{(-3)^2}

  • Combine like terms and then simplify 0^2 to 0

D = \sqrt{9}

  • Compute (-3)^2 = 9

D = 3

  • Compute \sqrt{9} = 3

The length of DC is 3.

7 0
3 years ago
100/225 square feet of your bakery will be used as your storefront, where customers come to visit. the rest will be for storage
Angelina_Jolie [31]
Okay, so the answer is 5/9. “Someone” was correct. The subtracting of 100 from 225 came from the 100 already being used out of that 225. If you subtract that, you’re left with how much space left. Place those back into the fraction and simplify and you get our answer.
5 0
4 years ago
Read 2 more answers
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