Answer:
(x-3)^2 + (y+2)^2 = 9^2
Step-by-step explanation:
x^2 -6x+y^2+4y-68 = 0
Complete the square
x^2 -6x+y^2+4y-68+68 = 0+68
x^2 -6x+y^2+4y = 68
Find the term to add for x
-6 /2 = -3 -3^2 = 9
Find the term to add for y
4/2 =2 2^2 = 4
Add 9 and 4
x^2 -6x+9+y^2+4y+4 = 68+9+4
(x-3)^2 + (y+2)^2 = 81
(x-3)^2 + (y+2)^2 = 9^2
The standard form is
(x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius
Answer:
$20.25
Step-by-step explanation:
8*1.75=x
x=14
5*1.25= y
y=6.25
x+y=20.25
Answer:
No
Step-by-step explanation:
1.2/3 =0.4
4/5 can be written as 0.8
So, 1.8/0.8 = 2.25.
However, 1.8/4/5 is the same as:
1.8/1 ÷ 4/5
Keep Change Flip
1.8/1 x 5/4 = 9/4
(1.8 x 5=9 & 1 x4 =4)
9/4 =2.25
Answer:
280
Step-by-step explanation:
50% is half, so to get the total, multiply 140*2 which is 280.
The square root of 9 is 3
