Which of the following represents a perfect square trinomial? A- x^2-2x+4
B- x^2-4x+4
C- x^2-4x-4
D- x^2-2x-4

Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

The measure of an angle is 117°. what is the measure of a supplementary angle?