Question

if ( st = 12 ) and ( rt = 39 ), find ( rs ). use the number line below.
( rs=square ) (type an integer or a decimal)

Explanation:

Step1: Use the segment addition postulate

On the number line, \(RT = RS+ST\).

Step2: Solve for \(RS\)

Rearrange the formula to \(RS=RT - ST\). Substitute \(RT = 39\) and \(ST = 12\) into the formula: \(RS=39 - 12\).

Step3: Calculate the value

\(RS = 27\).

Answer:

\(27\)