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3 years ago

Write the equation of a circle whose center is at the origin and contains the point (2, 3).

Mathematics

1 answer:

lana66690 [7]3 years ago

3 0

Answer:

x^2+y^2=13

Step-by-step explanation:

radius is the distance from the origin to the point

r=(2^2+3^2)^(1/2)=13^(1/2)

x^2+y^2=(13^(1/2))^2=13

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aleksandrvk [35]

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a) 4.4583 b) Fiona

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First find the average of the numbers by adding them all together then dividing them by the amount of numbers given:

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Then find the difference between each number and the answer you got

$(85 - 94.75) + (88 - 94.75) + (90 - 94.75) + (91 - 94.75) + (93 - 94.75) + (96 - 94.75) + (97 - 94.75) + (97 - 94.75) + (98 - 94.75) + (98 - 94.75) + (99 - 94.75) + (105 - 94.75)\div12$

Which is

$(9.75) + (6.75) + (4.75) + (3.75) + (1.75) + (1.25) + (2.25) + (2.25) + (3.25) + (3.25) + (4.25) + (10.25)\div12$

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