The equation of a circle in general form is ​x2+y2+20x+12y+15=0​ . What is the equation of the circle in standard form?
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Step-by-step explanation:

Given equation :

Standard equation of circle :

We will consider the x terms in the equation first to find a.

-2ax = 20x

a = -20x/2x = -10

a = -10

Next consider the y terms to find b.

-2by = 12y

b = -12y /2y = -6

b = -6

But the given equation constant is 15. So find the difference between 136 and 15 to find the radius : 136 - 15 = 121

Therefore, radius = √121 = 11

Equation in standard form :

the answer is 3/5

step-by-step explanation:

first divide 24 divided by 8 because that is the least common multiple

then divide 40 by 8

then you will get 3/5.

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: