Since the trapezoid can be inscribed in a circle, that means angle B + angle D = 180 degree. Since AB is parallel to CD, then angle B + angle C = 180 degree. Therefore, angle D = angle C.
The answer is 118
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Total bill-$67.95
each friends owes about $16.99
Answer is x= 3 or x= -2
x(x+2) -3 (x+2) = 0
(x+2) (x-3) =0
x+2=0
x-3=0
so..
x=-2
x=3
hope this helped a bit good luck :)
Answer:
Step-by-step explanation:
Using the general equation 
, we already know that 
and 
, but we need to find 
from the period:
Hence, the cosine function is
