Prove that ΔABC ~ ΔDEF

What are “like terms”? why can we only add like terms?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle