Answer:
Radius r = ±√52
Coordinates of center =
Step-by-step explanation:
Points to remember
Equation of a circle passing through the point (x1, y1) and radius r is given by
(x - x1)² + (y - y1)² = r ²
<u>To find the radius and coordinates of center</u>
It is given that an equation of circle,
(x - 4)² + (y + 6)² = 52
Compare two equations,
we get r ² = 52
r = ±√52
(x - x1)² = (x - 4)² then x1 = 4
(y - y1)² = (y + 6)² then y1 = -6
Coordinates of center = (4, -6)
Bug zapper #1 zapped 103 bugs
103 + 22 = 125
125 + 45 = 170
103 + 125 + 170 = 398
$27,000
10%- $2,700.
5%- $1,350.
$2,700+ $1,350 = $4,050.
$4,050 × 5 = $20,250.
$27,000 - $20,250 = $6,750.
the value will be $6,750.
