Answer: 17.5
Step-by-step explanation:
Answer:
3*r = 3
Step-by-step explanation:
6 is a solution.
6 is not a solution.
6 is a solution
Step-by-step explanation:
it will be x in terms of y or vice versa
<h3>
Answer: angle X = 70.5 degrees</h3>
=================================================
Work Shown:
Law of Cosines
c^2 = a^2 + b^2 - 2ab*cos(C)
22^2 = 20^2 + 18^2 - 2*20*18*cos(X)
484 = 724 - 720*cos(X)
484 + 720*cos(X) = 724
720*cos(X) = 724 - 484
720*cos(X) = 240
cos(X) = 240/720
cos(X) = 1/3
X = arccos(1/3)
X = 70.528779
X = 70.5
Make sure your calculator is in degree mode.
Answer: x= (y+z-a)/3
Step-by-step explanation:
You need to move every thing but the x on the other side, so subtract a and divide the whole thing by 3.
