The <em><u>correct answers</u></em> are:
Supplementary; ∠2 and ∠3; substitution; 2.
Explanation:
Supplementary angles are angles whose measures sum to 180°. Thus this is the first answer.
Since we are told that ∠2 and ∠3 are supplementary, their measures sum to 180° and they are the second answer.
We know that m∠1 + m∠2 = 180° and m∠2 + m∠3 = 180°. We can substitute "m∠2 + m∠3" for 180° in the first equation; this is the substitution property.
To isolate m∠1 on the right, we will subtract m∠2 from each side, and get that m∠1 = m∠3 and the angles are congruent.
Answer is 3 because when you solve its 3 or less
Two squares are congruent if they have the same side length.
Hey You!
To solve this question, we must use multiplication:
26 × 50 = 1,300
The computer ordered 1,300 CDs.
Answer:
Step-by-step explanation:
(a+b)(a-b)
-ab+ab-
