15 points! conjecture: points a, b, and c are noncollinear. is this conjecture true? no, points a and b lie on the same line, c and b lie on the same line, and a and c lie on the same line so all three points are collinear. yes. no, points a and b lie on the same line so they are collinear. no, points c and b lie on the same line so they are collinear. no, points a and c lie on the same line so they are collinear.

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Solve the equation.then check your solution 8=1.88+a

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.