Each of 8 samples has a different standard deviation. how many of the 8 samples could be from the same population?

Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9