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3 years ago

1.2x=6 what is the answer

Mathematics

1 answer:

kifflom [539]3 years ago

7 0

Answer:

To figure this out we need to balance out the equation.

When a number is right next a variable, it is considered as multiplication. So, to balance the equation we need to divide.

Step-by-step explanation:

1.2/1.2 =x

1.2/6=5

Answer; x=5

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7- a. What is the radius of the circle with center (3,10) that passes through (12,12)?

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

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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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