9. Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were de
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Answer:
Work Shown:
Explanation:
As the steps above show, the goal is to factor the expression under the root in terms of pulling out cubed terms. That way when we apply the cube root to them, the exponents cancel. We cannot factor the y term completely, so we have a bit of leftovers.