Answer: Last Option
Step-by-step explanation:
Cramer's rule says that given a system of equations of two variables x and y then:
For this problem we know that:
Solving we have:
Solving we have:
Solving we have:
Finally
In 2012 there were approximately 8,950 public libraries in the united states. A survey found that 76% of those libraries offered
2 answers:
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Answer:
Step-by-step explanation:
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Where bases are same, powers are to be added.
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