1: if a3 + b3 = 18 and a2 – ab + b2 = 9,
so what is the value of a + b?
2: if a – b =...
Mathematics, 04.05.2020 23:40 kroscioouws0q
1: if a3 + b3 = 18 and a2 – ab + b2 = 9,
so what is the value of a + b?
2: if a – b = 4 and a2 + ab + b2 = 12, what is the value of a3 – b3?
Answers: 1
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Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500
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