Pls answer Subtract (17+4.5m+8k)-(7.5m-9+4k)

On a parallelogram, the vector from one vertex to another vertex is (9,-2). what is the length of the side? •7•√85•18•85

Victoria created the scatterplot below based on the data in the table for the ages and heights of some teachers in her school. she wants to see if a teachers heigh depends on his or her age. what did she do wrong when she created the scatterplot

Use law of cosines to prove the measures of angles a, b, and c in the triangle below are equal. then find the exact value of cos a and explain why that value implies ma = 60°.