In the diagram, transversal tcuts parallel lines a and b. Which equation is necessarily true?
A. m21 = m27
B. m23 = m26
C. m25+ m28 = 90°
D. m26+ m27 = 180°

Write the sentence as an equation. z plus 372 is equal to 160

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia