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donmathuguina

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let x height of pine tree. a=3 ,b=11, d=a+b, y=6 which is height of student. x=(dy-ay)/a ans.22 not all the time ratio is applicable. alternate solution. you took the angle both triangle in terms of x, tangentx/d & tangentx/b. make an equation then
pine tree!! that question not mention how long it will float and sink. ice, float at first since lesser density later on it will mixed up to water(combine). lead always sink. pine tree is the answer, at first float then later on it will sink when the parts

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