Question 51745
find two arithmetic means between 5 and -4.
thanks i hope you can help!
let the 2 means be x,y...let c.d = d 
x=5+d
y=5+2d
-4=5+3d.......3d = -9
d = -3
x= 5-3 = 2
y =5-2*3 = -1