Given: AB = 3x + 2; BC = 4x + 8; AC = 38 Prove: x = 4

Statements Reason
1. AB = 3x + 2; BC = 4x + 8;

AC = 38 1. Given
2. AB + BC = AC 2. Segment Addition Postulate
3. 3x + 2 + 4x + 8 = 38 3. Substitution Property of Equality
4. 7x + 10 = 38 4. Combining Like Terms
5. 7x = 28 5. Addition Property of Equality
6. x = 4 6. Division Property of Equality
On which line, did Daniel make his error?

Find equation of line with slope equals 8 and passing through (6,53)

Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 − 0.25 x 2.4 x 0.65

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.