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strojnjashka [21]
3 years ago
14

X^2-xy+3y^2=15 x-y=2

Mathematics
1 answer:
weeeeeb [17]3 years ago
8 0

x^2-xy+3y^2=15           x-y=2

Make the equation X:

x = y + 2

Plug in and Solve:

(y+2)^2 - y(y+2) + 3(y+2)^2 = 15

y = (√46) - 7/3

y = - 7 + (√46)/3

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Step-by-step explanation:

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when both bottom numbers on a fraction are the same at the lowest form

Step-by-step explanation:

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dezoksy [38]

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Step-by-step explanation:

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3 years ago
Select all the equations on which the point (10,0) lies.
Makovka662 [10]

Answer:

  B, C

Step-by-step explanation:

Since y=0, you are looking for equations such that 10 times the coefficient of x is the constant in the equation.

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8 0
2 years ago
What is the slope of (-3,0) and (2,7)
svetlana [45]

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7/5

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, slope can be found using

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So we just plug it in:

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7/5 is your slope

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, thanks!

3 0
3 years ago
Read 2 more answers
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