alexallday2324 alexallday2324

15-12-2017
Mathematics

contestada

like I tried to figure it out but I just can't

like I tried to figure it out but I just cant class=

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tynollette tynollette

15-12-2017

this is the equation of an ellipse. the 225 is the 15², it is longer than 81 (9²), so the major axis is the x axis.
centered at (0, 0), it goes left and right 15 units each, so the total length is 30 units. choice A is the correct answer.

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