Below are three boxes containing black and white balls. The number of each color is noted inside the box. Draw a ball from box one and place it in box 2. Then draw a ball from box 2 and place it in box 3. Finally draw a ball from box 3. Box one 6 white 3 black box 2 3 white 3 black box 3 3 white 1 black what is the probability that the last ball drawn from box 3 is white

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.