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what is the average (arithmetic mean)

0 votes

of x^2+2x-3, 3x^2-2x-3 ,and 30-4x^2?

arithmetic-mean

asked Jul 20, 2013 in ALGEBRA 1 by futai Scholar

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1 Answer

0 votes

Arithmetic mean= ((x^2+2x-3)+( 3x^2-2x-3)+(30-4x^2))/3

=24/3

=8

answered Jul 20, 2013 by bradely Mentor

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