60 percent of 250= 150. you multiply 0.6 by 150 and get 250. then double check answer by multiplying 250 by 0.6
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
Part 1) what is the measure of angle AFE
we know that
The measure of the interior angle is the semisum of the arches that comprise it and its opposite.
<u>Note:</u> In this problem the correct measure of arc EA is 40 degrees (see the picture)
so

substitute the given values

Part 2) what is the measure of angle EFB?
we know that
---> by supplementary angles (form a linear pair)
so
substitute the given value


First use the distance formula to find the radius of the circle:
d=

d=

d=

d=

d=

d=|17|
d=17
Next, find the equation of the circle (use the first picture):
(x+1)^2+(y-5)^2=17^2
Finally, input the equation into a graphing calculator:
(2nd picture)
What do u want to do to it??