Mathematics: -3x - 4y = 4 --5x + y = 2 Is (2, 10) a solution of the system?

-3x - 4y = 4 --5x + y = 2 Is (2, 10) a solution of

Ответ:

67555savchenko

18.03.2022

No, Not a solution.

Step-by-step explanation:

$- 3x - 4y = 4 \\ - 5x + y = 2 \\ - 3x = 4 + 4y \\ - x = \frac{4}{3} + \frac{4y}{3} \\ 5( \frac{4}{3} + \frac{4y}{3} ) + y = 2 \\ 6.67 + 6.67y + y = 2 \\ 7.67y = - 4.67 \\$

$y = - 0.608 \\ x = - \frac{4}{3} + 0.811 \\ x = - 0.522$

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Ответ:

memberpabc

01.02.2021

Mathematics

x = 44°

Step-by-step explanation:

Since this is an isosceles triangle, the other angle that isn't defined is also 68°. So, since all the angles add up to 180°,

x + 68(2) = 180

x + 136 = 180

x = 44°

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-3x - 4y = 4
--5x + y = 2
Is (2, 10) a solution of the system?

Ответ:

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