The mean is when you add up all the numbers and divide by the amount of numbers there are.
143+312+41+28+308+619+321+352+465=2589
2589/9=287.666666667
round to the whole number you get
288
I’m too lazy to draw a graph but
AB=[2-(-6) , 3-9] = (8,-6)
AB/2 = (8,-6)/2 = (8/2,-6/2) = (4,-3)
mind point of AB is (4,-3) just draw that on a graph and u got it
Answer:
i have no idea
Step-by-step explanation: