Select all expressions that are equivalent to
-3 1/5 •5• (-5/8)
A:-3 1/5•(-5) • (5/8)...
Mathematics, 11.03.2021 23:40 emilypzamora11
Select all expressions that are equivalent to
-3 1/5 •5• (-5/8)
A:-3 1/5•(-5) • (5/8)
B: -3 1/5• (-5)• (-5/8)
C:5• (3 1/5) • (5/8)
D: 5• (-3 1/5)• (-5/8)
E: -3 1/5 • 5/8 •5
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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
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