Let z be a standard normal random variable with mean μ = 0 and standard deviation = 1. Use Table 3 in Appendix I to find the probability. (Round your answer to four decimal places.) USE SALT P(-2.58 < z < 2.58) =

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Q: 1. Let f(x) = 2x² – x. Find and simplify the difference quotient: f(x+h) – f(x) h

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Q: 1 -2 4 -2 3 If A = 3 4 -1 and B -1 8 0 find AB. -2 1 3 6. 1 2 ? ? ? ? ? AB ? ?

A: The given matrices are: A=1-2034-1-213 and B=4-23-180612 Find the value of AB.