An exam consists of six true-or-false questions. assuming that every question is answered, in how many different ways can a student complete the exam? in how many ways may the exam be completed if a penalty is imposed for each incorrect answer, so that a student may leave some questions unanswered?

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Solve the triangle. a = 21°, c = 105°, c = 5

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