A job seeker is attending an interview in a company. The interview is in three parts, namely, aptitude, written and verbal. The probabilities of him passing the aptitude test, written test and verbal test are 0.7, 0.6 and 0.5 respectively. Find the probability of him (a) passing all the tests. (b) failing all the tests. (c) passing at least two of the tests. (d) passing one test.​

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.