A -1 or 0.86 B 1or0.86
C 1or -0.86
D -1or -0.86

I know the answer is A but i need the working plz...

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)