Use the method of undetermined coefficients to solve the differential equation.y" - 7y' + 10y = ex

A. y = C1e-5x + C2e-2x + ex
B. y = C1e-5x + C2e-2x - ex
C. y = C1e5x + C2e2x + xex
D. y = C1e5x + C2e2x + ex

Answer: D

Mathematics

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a. 2a(a + 8) b. 2(a2 + 8a + 16) c. 2(a2 + 4a + 6) c e. 2a(a + 6)

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Use the rule-of-thumb test to check whether a normal distribution (with the same mean and standard deviation as the binomial distribution) is a suitable approximation for the binomial distribution with given the properties.n = 20, p = .8

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