The linear density of a rod of length 4 m is given by ρ(x)=9 +2√x measured in kilograms per meter, where x is measured in meters from one end of the rod. Find the total mass of the rod.

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A: a) P(the sum is 9 or more) A = (3,6), 4,5 4,6, 5,4, 5,5, 5,6, 6,3, 6,4, 6,5, 6,6 n(A) = 10 P(the sum…

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A: topic-equations