Technician a says that to offset the unfavorable balance of u. s. dollars sent overseas for petroleum, bio-based fuels are being homegrown and used. technician b says that 5% ethanol is commonly blended with 95% gasoline in some states. who is correct?

i dont know the answer but here's a picture of a dog

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb

you didn't give an question you just gave us a statement