Step-by-step explanation:
3y means 3 times y. It is normally used to shorten an equation with a variable to save room. The number is always placed before the variable.
<u>Given</u>:
The diameter of the circle P is 30 cm.
The radius of the circle P is 15 cm.
The measure of ∠RPS is 125°
We need to determine the arc length of QR.
<u>Measure of ∠QPR:</u>
The angles QPR and RPS are linear pairs.
Thus, we have;

Substituting the values, we have;


Thus, the measure of ∠QPR is 55°
<u>Arc length of QR:</u>
The arc length of QR can be determined using the formula,

Substituting
and r =15, we get;



Thus, the arc length of QR is 14.4 cm.
Hence, Option d is the correct answer.
The answer is 7418.
Hope this helps
Answer:
-28x(-1.6)
Step-by-step explanation:
combine like terms: -18x +(-10x) ---> <u>-28x</u>
3-4.6 ---> <u>-1.6</u>
Combine the leftover terms:
<u>-28x(-1.6)</u>