Answer:
(x + 1)² + (y - 1)² = 16
Step-by-step explanation:
Since the standard form for an equation of a circle is
<h3>
(x - h)² + (y - k)² = r²</h3>
The (h,k) are co-ordinate of your centre of circle, which in this case is (-1,1) and r is the radius of circle.
As we can see in the figure radius = 4units
<em>from centre(1,-2) to (1,-2)</em>
Put these into the equation
(x + 1)² + (y - 1)² = 4²
(x + 1)² + (y - 1)² = 16
3b+2(b-1) = 8
3b+2b-2 = 8
5b = 8+2
5b = 10
b = 2
Answer:
nhgtf
Step-by-step explanation:
Answer:
It should be 46.20
Step-by-step explanation:
You're rounding to the nearest hundredth. So you have 46.1979 to start out with. Then you count 2 places so you end at the 1st 9. Well, behind the 9 is a 7 so you round up and get 20
