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brittanysanders
25.08.2019 •
Mathematics
Simplify 1/3 (12x+6y) - 1/6 (12x+6y)
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Ответ:
Step-by-step explanation:
we have
Factor the term (12x+6y)
Remember that
substitute
Applying distributive property
Simplify
Ответ:
(x-2)^2 + (y+2)^2 = 25
Step-by-step explanation:
First calculate the center using the midpoint formula
Mpq=(xP/2 + xQ/2) ; (yP/2 +yQ/2)
=(- 2/2 + 6/2) ; (1/2 + -5/2)
=(2;-2) coordinates of the center
Use the general formula (x-a)^2 + (y-a)^2 =r^2 to find equation and the radius.
Substitute the coordinates of the center
(x-2)^2 + (y+2)^2 = r^2
Substitute the point (-2,1) for the value of r^2
(-2-2)^2 + (1+2)^2 = r^2
r^2 = 25
The equation is (x-2)^2 + (y+2)^2 = 25