C. Is 247 a prime or composite number? Explain.
3 answers
Answers
247 is a composite number
Step-by-step explanation:
Prime numbers have only 2 factors, the number itself and 1.
247 can be divided by 13 and 19 as well, making it a composite number.
Cdoes not have two variables
[tex]Which one does not belong with the other three? explain your reasoning.[/tex]
x =±sqrt(1/3)
step-by-step explanation:
x+4/6x=1/x
multiply each side by 6x to get rid of the fractions
6x*(x+4/6x)=1/x*6x
distribute
6x^2 +4 = 6
subtract 4 from each side
6x^2 +4-4 = 6-4
6x^2 =2
divide by 6
6x^2/6 = 2/6
x^2 = 1/3
take the square root of each side
sqrt(x^2) = ±sqrt(1/3)
x =±sqrt(1/3)
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