The measure of QS from the given line is 10
<h3>Addition postulate</h3>
From the given diagram below, we will use the following addition postulate;
QR + RS + ST =QT
Given the following parameters
RT = 15
RS = 7 , and
QT = 18
Substitute
QR + RT =QT
QR + 15 = 18
QR = 18 - 15
QR =3
Determine QS
QS = QR + RS
QS = 3 + 7
QS = 10
Hence the measure of QS from the given line is 10
Learn more on addition postulate here: brainly.com/question/2134445
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B is not correct because in order for the equally
Answer:
Step-by-step explanation:
Note that .
Aha! We see a path to the solution!
We now know that our equation is actually .
We can divide both sides by to get .
By inspection or taking the logarithm base 2 of both sides, we see that .
So, the answer is and we're done!