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hoa [83]
4 years ago
15

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

Mathematics
1 answer:
horrorfan [7]4 years ago
7 0
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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a.) w = 103 * 1.08^t

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If Her current weight is 103 pounds and she hopes to multiply her her weight each week by 1.08, then

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Her weight after 2 weeks = [weight of week 1] * 1.08 = [103* 1.08] * 1.08 = 103 * 1.08²

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