TeX rendering has been iffy at best on this site for the past few days, at least in my experience. I've attached a solution below.
Quality control finds on average that 0.045% of the items from a certain factory are defective. One month, 4500 items are checke
2 answers:
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9514 1404 393
Answer:
x = 4
Step-by-step explanation:
I like to put these in the form f(x) = 0. We can do that by subtracting the right side. Common factors can be cancelled from numerator and denominator, provided they are not zero.
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If you leave the numerator as (x-3)(4-x), then there are two values of x that make it zero. Because x=3 makes the equation "undefined", it cannot be considered to be a solution.
