The members of a relay team in the 400 metres run the following times for their legs: 44 secs, 43 secs, 45 secs and 42.8 secs. What is the team's average speed for the whole race?

4 puzzles in 3 hours

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.