Under which of the following operations are the polynomials 8a + 14 and

2 answers:

7 0

For the answer to the question Under which of the following operations are the polynomials 8a + 14 and 3b - 9 not closed?

The answer is the fourth one among the given choices and it is D.Division.

I hope my answer helped you. Feel free to ask more questions. Have a nice day!

Mrrafil [7]3 years ago

4 0

The answer is D. check here for more details: https://prezi.com/hqgfggufngnw/under-which-operations-are-polynomials-closed/

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Which is the value of this expression when a=5 and k=-2

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Answer:

Option C is correct.

Step-by-step explanation:

We are given the expression:

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$=(\frac{3^2*5^{-2}}{3*5^{-1}})^-2\\=(\frac{3^{2-1}}{5^{-1+2}})^-2\\=(\frac{3^{1}}{5^{1}})^-2\\\\=(\frac{3}{5})^-2\\if \,\,a^{-1} \,\,then\,\, 1/a\\=\frac{(3)^{-2}}{(5)^{-2}}\\ Can\,\,be\,\,written\,\,as\\\\=\frac{(5)^{2}}{(3)^{2}} \\=\frac{25}{9}$