Given a circle with center at (10,9) and a radius of 3 what is the equation of a circle

solution given that

(h k)=(10 9)

r=3

then we know that

equatiin of circle with radius 3 unit and centre at (10 9)is

(x-h)^2+(y-k)^2=r^2

(x-10)^2+(y-9)^2=3^2

x^2-2×x×10+10^2+y^2-2×y×9+9^2=9

x^2-20x+100+y^2-18y+81=9

x^2+y^2-20x-18y+180=0ans

b. x- 48 =120

step-by-step explanation:

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5