16387412467582039-=0538769434203-13=2=3918427356492401-98573
so .; it is 3
Answer:
129
Step-by-step explanation:
the sum of the interior angles of a quadrilateral is 360, so you add 71+112+48 and subtract it from 360 to get x
Answer:
A is the only correct choice
Step-by-step explanation:
The expression itself, when evaluated, is 2.5
B, C, and D, when evaluated, also equal 2.5
Since the question asks which one is not 2.5, it must be A
Hope this helped!
Answer:
Step-by-step explanation:
Law of cosines: c^2 = a^2 + b^2 − 2ab cos(C)
Used to find: the angles of a triangle when we know all three sides
We are looking for: Angle Q. The side opposite Angle Q (30) can be c. Line segments RQ and QS are a(17) and b(18).
30^2 = 18^2 + 17^2 - 2(17)(18) cos (q)
