I think that x=9 not sure though
Answer:
The value of x is 
Step-by-step explanation:
see the attached figure to better understand the problem
step 1
Find the measure of arc DF
we know that
The inscribed angle measures half that of the arc comprising
so

we have

substitute

step 2
Find the measure of x
we know that
---> is a semi circle
we have

substitute

-4x is the slope.
No problem!
:D
Answer:
Step-by-step explanation:
A) 120 / 2 = 60°
B) 180 - 90 60 = 30°
C) 60° same as arc length GE in part A above
D) 9 units = Rsinθ = 18sin30
Answer:25
Step-by-step explanation:
To evaluate 8a+3b-10+c when a=2,b=5,c=4
We get
8(2)+3(5)-10+4
16+15-10+4
31-10+4
31+4-10
35-10
=25