What is the acceleration of a runner who goes from 1.4 m/s to 2.2 m/s in fourseconds?

Find the difference in speed:

2.2 - 1.4 = 0.8 m/s

Now divide the difference in speed by time:

0.8 m/s / 4 seconds = 0.2 m/s/s

no he doesnt because "-16' is negatiive

step-by-step explanation:

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.