Answer:
The equation is:
Step-by-step explanation:
The equation of a circle:
(where 
represents the center and 
the radius).
-Use the given center and radius for the equation of a circle:
After, you have the equation of a circle written, simplify the radius by the exponent 
:
So now, you have found the equation of a circle.
Answer:
arc AB = 60°
Step-by-step explanation:
The diameter splits the circle into two semi circles.
in the semicircle above the diameter, you can do 180° - 120° = 60°
so arc AB = 60°
( I'm sorry; I'm not sure how to get the answer in terms of pi. )
Answer:
1/4
Step-by-step explanation:
y=1/4x
or
y=1.4x+2
What?........... I’m confused.
<h3>
Answer: Choice A</h3>
Explanation:
Choice A has the f(x) values going down on the interval -1 < x < 1 only.
Choice B appears to be decreasing over its entire domain, so we can rule this out (since we want -1 < x < 1 to be the only decreasing interval).
Choice C's table isn't decreasing when -1 < x < 1 since y = -3 increases to y = 0 (from x = -1 to x = 0). So we can rule it out.
A similar situation happens with choice D as well, so we can rule this out. The function isn't decreasing when we go from f(-1) to f(0).
