Answer:
Step-by-step explanation:
Start with the distance squared.
The distance from the center to the point on the circle is found from
Formula
d^2 = r^2 = (x2 - x1)^2 + (y2 - y1)^2
Givens
x2 = 2
x1 = - 5
y2 = -8
y1 = - 8
Center= (-5,-8)
Solution
r^2 = (2 - - 5)^2 + (-8 - - 8)^2
r^2 = 49 + 0
r^2 = 49
equation
(x + 5)^2 + (y + 8)^ = 49
Answer:
L = 2r + 3
Step-by-step explanation:
Given parameters:
Area of rectangle = 14r + 21
Width of the rectangle = 7ft
Unknown:
Length of the rectangle = ?
Solution:
If the length of the rectangle is designated as L;
Area of a rectangle = Length x width
Now insert the parameters:
14r + 21 = L x 7
L =
L = 2r + 3