It's for sure reflection symmetry, I think it's also point reflection (the point must be in the very middle of the figure). I hope it will help you somehow :)
Answer:
Hi
Step-by-step explanation:
8, 7, undefined, 6*sqrt *2
The mean is the average of the numbers, so if x = all 11 numbers added together, then you have the equation:
x / 11 = 7, so x = 77 (this is all of the numbers added together)
if the number 13 is removed, the equation becomes:
(77 - 13) / 10 = M (M is the new mean)
so the new mean is 6.4
(x+2)^2=(x+2)(x+2)
remember
25/5=5 aka
(5^2)/5=5
so
(x^2)/x=x
((x+2)^2)/(x+2)=x+2
