Two ships leave a port at the same time. The first ship sails on a bearing of 38 degrees at 18 knots (nautical miles per hour) and the second on a bearing of 128 degrees at 26 knots. How far apart are they after 1.5 hours? (Neglect the curvature of the earth.)

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality