Question

b warm up get locked in!

1. writing explain how \\( \overline { x y } \\) and \\( x y \\) are different.
2. different words, same question which is different? find \both\ answers,

find \\( a c + c b \\).
find \\( b c - a c \\).
find \\( a b \\).
find \\( c a + b c \\).

Explanation:

Step1: Calculate \(AC + CB\)

Given \(AC = 3\) and \(CB=7\), then \(AC + CB=3 + 7=10\)

Step2: Calculate \(BC - AC\)

Given \(BC = 7\) and \(AC = 3\), then \(BC-AC=7 - 3=4\)

Step3: Calculate \(AB\)

Since \(AB=AC + CB\) (by the segment - addition postulate), and \(AC = 3\), \(CB = 7\), so \(AB=3 + 7=10\)

Step4: Calculate \(CA+BC\)

Since \(CA = 3\) and \(BC = 7\), then \(CA + BC=3+7 = 10\)

Answer:

The different one is “Find \(BC - AC\)”.
\(AC + CB=10\), \(AB = 10\), \(CA + BC=10\), \(BC - AC = 4\)