Name: Stay Home Assignment 4
Evaluate each expression at the given value.
1.) x + 7 if x = 2

2.) x/-3 if x = 12

3.) -6x – 8 if x = 3

4.) 4x – 8 if x = -5

5.) 3x – 10 if x = 10

6.) 10 + 7x - 2x if x = 4

7.) 5x – 18 if x = 12

8.) 107 - 7x if x = -6

9.) 2(8 - 5x) if x = 3

10.) 7(3 + 3x) if x = 7

Can someone please do my test

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