1) An isosceles triangle has a base that measures 2x - 6 and two congruent legs that measure 5x + 12 a) Using distributive properly find perimeter of the triangle. Simplify the expressions

b) Factor the simplified expression from part a

c) find the perimeter of the triangle when x = 7.78

Find the dimensions of the circle. area = 64π in.² r= in.

Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333

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.