Answer: 57°
Given : In triangle PQR, the side PQ is 17, QR is 15, and PR is 14.
We use law of cosine formula
225 = 196 + 289 - 476 cos(P)
225 = 485 - 476 cos (P)
Subtract 485 on both sides
-260 = -476 cos(P)
= cos(P)
P =
P= 56.89202
So measure of angle P is 57 degrees
Answer:
Step-by-step explanation:
Given
Required
Determine the number of bags sold
First, we need to determine the number of bags for 27 pears;
Since they are packed in 3s
Hence:
9 bags were used for 27 pears;
After 5 bags were sold, we have:
Recall that the pears are packed in 3s
So:
Answer:
Step-by-step explanation:
<h2>In the unit circle we have:</h2><h2>In the picture we see that x=1/3.
<h2>Using de equation of unit circle:</h2>y is positive because y are in the first quadrant of the cartesian plane.