. Triangle GHI with vertices G(4,1), H(5,-4) and
I(2,-8): y = x
Please help

Which solid has two triangular bases and three lateral faces, each in the shape of a rectangle? triangular prism triangular pyramid rectangular prism rectangular pyramid

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0