A hot tub that holds 300 gallons of water drains at a rate of 8 gallons write an equation that represents how many gallons of wa
1 answer:
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If then complex number
is a root of cubic polynomial.
If polynomial has real coefficients, then conjugated is also a root of polynomial.
Then the polynomial will be of a form
Since then
Therefore,
Answer: 4
Step-by-step explanation:
She made her mistake at the first step. To simplify a radical, you would find two numbers that multiply by each other to get your original number (under the radical) and have one of the number be a perfect square.
Her reasoning is wrong because 10*10 is not
. Had she been correct, her answer should have been able to be squared to equal
In other words, she should have done
(We used 25 because 25 is a perfect square, 5*5=25).
:)
Her reasoning is wrong because 10*10 is not
In other words, she should have done
(We used 25 because 25 is a perfect square, 5*5=25).
:)