Write x2 + y2 – 18x + 8y + 5 = 0 in standard form.

Group terms and move the constant to the other side of the equation.
x2 – 18x + y2 + 8y = –5
Determine the values that need to be added to both sides of the equation.
(–18 ÷ 2)2 = 81 and (8 ÷ 2)2 = 16
Add the values to both sides of the equation.
Write each trinomial as a binomial squared, and simplify the right side.
What is the standard form of the equation of a circle given by x2 + y2 – 18x + 8y + 5 = 0?

x²-18x+81 + y²+8y+16 = -5+81+16=92

(x-9)² + (y+4)² = (2✓23)²

circle centered at (9,-4) with radius 2✓23

Step-by-step explanation:

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without