Answer:
(x - 10)² + (y + 9)² = 20
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
The radius is the distance from the centre to a point on the circle
To calculate r use the distance formula
r = √(x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (10, - 9) and (x₂, y₂ ) = (12, - 13)
r =
= = , hence
(x - 10)² + (y - (- 9))² = ()², that is
(x - 10)² + (y + 9)² = 20
Answer:
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Step-by-step explanation:
Answer:
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Answer:
Cost of new carpet per square foot should be less than or equal to $3.54.
Step-by-step explanation:
Given:
Money have to buy carpet =
dimension of game room is 20 feet by 12 feet
So we can say length l = 20 feet
and width w = 12 feet
let be the cost per square foot for new carpet.
Assuming game room to be rectangular in shape we will find the area of it.
Area of room =
Total area cost per square feet ≤ Total money we have
Hence,
Hence Cost of new carpet per square foot should be less than or equal to $3.54.