Answer:
-1
Step-by-step explanation:

Once we have an absolute value, we know that







I think it is C) i am sorry if i am wrong
Answer:
70.52 degrees
Step-by-step explanation:
To find the angles, we must first find the lengths of each side of the triangle. Adding up the respective radii, we can see that
XY = 5+4 = 9 CM
XZ = 6+5 = 11 CM
ZY = 4+6 = 10 CM
Now we can apply the cosine rule

We need to rearrange the rule to solve for x, our missing angle

solving for our unknown angle:


Therefore angle YXZ is 70.52 degrees
Answer:
Step-by-step explanation:
Combine 12and x2.x22−4x−2x