Identify the x-intercepts. justify your answer by showing each step. y=2x^2+3x-20

x = -4 and x = 5/2

Step-by-step explanation:

x-intercepts when y = 0

So

2x^2 + 3x - 20 = 0

2 * (-20) = -40

-40 = 8 * (-5)

and 8 - 5 = 3

So

2x^2 + 3x - 20 = 0

2x^2 +8x - 5x - 20 = 0

2x(x + 4) - 5(x + 4) = 0

(2x - 5)(x + 4) = 0

2x - 5 = 0; x = 5/2

x + 4 = 0; x = -4

Answer

x = -4 and x = 5/2

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "