There's no way to do that without seeing the drawing or hearing a lot more information. For one thing, we don't even know the size of the circle yet.
Alright, so what we can take as a given is that arcDE/2= ∠CDE=2x+20 since the arc corresponding to the angle is 2*the angle. To solve for arcDE, we multiply both sides by 2 to get 2(2x+20)=4x+40=arcDE. Since the arcs in a circle add up to 360 degrees and we only have -20+30x and arcDE, we have -20+40+4x+30x=360 using the associative property. Simplifying, we get 20+34x=340. Subtracting 20 from both sides, we get 340=34x. Next, we can divide both sides by 34 to get 10=x.
Answer:
1'
S45tep-by-step explanation:
Answer:
x=10
Step-by-step explanation:
40= 3x+10 (it equals 40 because of vertical angles)
The function shown is ...
It will have zeros where the numerator factors are zero: x=0, 2, 5.
_____
Perhaps you intend the function
... f(x) = x(x-2)/((x+3)(x-5))
which is written in typeset form as ...
It, too, will have zeros where the numerator factors are zero: x = 0, x = 2.
Appropriate choices seem to be ...
