okheatherok okheatherok

11-09-2017
Mathematics

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Which of the following results in a sum or a product that is rational? Choose all that apply.

Which of the following results in a sum or a product that is rational Choose all that apply class=

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j69cochran j69cochran

11-09-2017

The 1st, 3rd, and 4th options.

1. 4+9     Rational
2. pi * 5    Pi is irrational and multiplying it by 5 doesn't change that.
3. 3.454545...    is a rational number. If you do the math, it's 3 5/11
4. sqrt(16) * sqrt(4) is a rational number. It's 4 + 2 = 6
5. sqrt(7) x sqrt(2)    is irrational.

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