Select the correct answer from each drop-down menu.
Consider the equation below.
-341 – 7) = 15 – 20
The equation was solved using the following steps.
+
Step 1:
Step 2:
Step 3:
-121 + 21 = 15 – 21
-10.1 + 21 = 15
-10
+
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Step 4:
|
i
Step 5:
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Complete the statements below with the process used to achieve steps 1-4.
Step 1:
-3 to 4x and -7.
Step 2:
2x
Step 3:
21.
Step 4:

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