2/3 divided by 5 (i just need to check)

Hey peoples! im bored add me on discord xd emmy#1782 < 3

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Solve the equation by completing the square. x^2+2x=17