On a coordinate and point A is at (-3.0 -5.4) and point B is at (-3.0, 5.4) Point B is a reflection of point A across the -axis. Input either a lowercase x or y

Geometry answer picture question pls . reason and statements

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed