David cut a board 20 foot long into four equal pieces. Which expression does NOT equal the length of one of the pieces in feet?
2 answers:
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Answer:
Step-by-step explanation:
1) rewrite 60 as it's prime factors.
2) group the smae prime factors into pairs.
3) Rewrite each pair in exponent form.
4) use this role:
5) Simplify.
So, therefor, the answer is option 1.