Marie wrote this expression to describe the number of cherries she would give each friend. c ÷ 3 which situation could be described by this expression? a. marie does not know how many cherries she has to share. she knows she is sharing her cherries equally with 3 friends. b. marie does not know how many cherries she has to share. she knows she will give each friend 3 cherries. c. marie knows she has 3 cherries to share. she does not know how many friends she is sharing her cherries with. d. marie knows she has 3 cherries to share. she does not know how many cherries each friend will get.

Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality