4. Fatima bought a collector's basketball card in 1990 for $35. The value increases by x % every year. It is estimated that in 2015, it will be worth $190. What is the annual growth rate as a percentage (to one decimal place)?

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A:

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A: The solution is given as

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A: The solution of the graph is y''+y=0

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A: Here we use basic integral formula of shell method to find the volume.

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Q: 4. In the differential equation (6x-3y+2)dx-(2x- y-1dy=0, we let the substitution dx =

A: According to guidelines we solve one question.thanku

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Q: If x = P(7, 4), y = P(8, 4), and z = P(8, 3), arrange X, y, and z from smallest to greatest. O x, y,…

A: We know from permutation formula,       P(n,r) = n! / (n-r)! and n! = 1*2*3*..….......*(n-1)*n…

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Q: exp(-4 + 5i) re2mi

A: According to Euler's Formula, for any real number x; eix=cos x+i sin x