Answer:
AB=CB
Step-by-step explanation:
These have congruent side markings.
1 I think. Tell me if that is correct
Area: 64 in.
Perimeter: 102 in.
15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2
