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2 years ago

Whoever gets it right can have brainliest, but answer ASAP!

Mathematics

2 answers:

Mars2501 [29]2 years ago

7 0

5^2 + 3 - 1 = 27

18 / 2 = 9

27 / 9 = 3

Answer is 3

Hope This Helps!

trapecia [35]2 years ago

7 0

Answer:

Step-by-step explanation:

5*5=25 + 3-1=2 25+2=27

18/9=2

27/9 27/3=9 9/3=3

9/3 9/3=3 3/3=1

3/1=3

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Answer: a. Radius of circle = $\sqrt{85}$

b. The equation of this circle : $(x-3)^2+(y-10)^2=85$

Step-by-step explanation:

Given : Center of the circle = (3,10)

Circle is passing through (12,12).

a. To find the radius we apply distance formula (∵ Radius is the distance from center to any point ion the circle.)

Radius of circle = $\sqrt{(12-3)^2+(12-10)^2}$

Radius of circle = $\sqrt{(9)^2+(2)^2}=\sqrt{81+4}=\sqrt{85}$

i.e. Radius of circle = $\sqrt{85}$

b. Equation of a circle = $(x-h)^2+(y-k)^2=r^2$ , where (h,k)=Center and r=radius of the circle.

Put the values of (h,k)= (3,10) and r= $\sqrt{85}$ , we get

$(x-3)^2+(y-10)^2=(\sqrt{85})^2$

$(x-3)^2+(y-10)^2=85$

∴ The equation of this circle : $(x-3)^2+(y-10)^2=85$

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3 years ago

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Anna [14]

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