Determine if triangle DEF with coordinates D(2, 1), E(3, 5), and F(6, 2) is an equilateral triangle. Use mathematical evidence to support your claim. (10 points)

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic. org

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2