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16 November, 12:02

A circle is graphed with its center on the origin. The area of the circle is 49 square units. What are the coordinates of the x-intercepts of the graph? Round to the nearest tenth

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  1. 16 November, 12:31
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    3.95 and - 3.95

    Step-by-step explanation:

    To graph a circle you can use the formula or (x - h) ^2 + (y - k) ^2 = r^2. So substituting in the given, we get x^2+y^2=49/pi. The x intercept is when y=0. So x^2=49/pi and so

    x = sqrt (49/pi) and rounding to the nearest tenth, we get 3.95 and - 3.95 because it isn't a principal square root.
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