Apolynomial has x-intercepts of 2, 0, and –1, and passes through the point (1, –10). which functions could represent this graph? x3 – x2 – 2x x2 – x – 2 5x2 – 5x – 10 5x3 – 5x2 – 10x

Which formula gives the area of a triangle? a=1/2(b+h)

Can someone me and do the problem plz so i can understand it more better

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?