Answer:
The area of the circle is 
Step-by-step explanation:
we know that
The area of a circle subtends a central angle of
radians
so
By proportion find the area of the circle

Add them together and find x :)
Answer:
V≈100.53
Step-by-step explanation:
V=πr2h=π·22·8≈100.53096
Conjugate of 9-5i is 9+5i
product of those two: (9-5i)*(9+5i) =
Answer:
48 units squared
Step-by-step explanation:
So you know the height, which is 8 and you know the base, which is 12. Then you multiply 8 by 12 and divide it by two which is 48.