4x + 2y = 10
x = y + 13
Find x and y using substitution

x = 6

y = -7

Step-by-step explanation:

4x+2y = 10

x - y = 13

4x + 2y = 10

-4[x - y = 13]

4x + 2y = 10

-4x + 4y = -52

6y = -42

y = -7

Now that we have y, plug in the value to solve for x:

4x + 2(-7) = 10

4x - 14 = 10

4x = 24

x = 6

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.

(8+64)^2= 5184 < answer

step-by-step explanation:

2^3 = 8

4^3= 64

(8+64)^2 = 5184