niwood16
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Which expression is equivalent to -9x^-1y^-9/-15x^5y^-3? Assume x is not equal to 0,y is not equal to 0

a. 3/5x^5y^3
b. 3/5x^6v^6
c. 5/3x^5y^3
d. 5/3x^6y^6

Answer :

I am going to assume that "v" is meant to be a "y"
the answer is b. (3)/(5x^6 y^6)

Answer:

The correct option is b.

Step-by-step explanation:

The given expression is

[tex]\frac{-9x^{-1}y^{-9}}{-15x^5y^{-3}}[/tex]

It can be written as

[tex]\frac{-9}{-15}\times \frac{x^{-1}}{x^5}\times \frac{y^{-9}}{y^{-3}}[/tex]

Using the property of exponent we get

[tex]\frac{3}{5}\times x^{-1-5}\times y^{-9+3}[/tex]       [tex][\because \frac{x^m}{x^n}=x^{m-n}][/tex]

[tex]\frac{3}{5}\times x^{-6}\times y^{-6}[/tex]

[tex]\frac{3}{5}\times \frac{1}{x^{6}}\times \frac{1}{y^{6}}[/tex]       [tex][\because \frac{1}{x^n}=x^{-n}][/tex]

[tex]\frac{3}{5x^{6}y^{6}}[/tex]

Therefore the correct option is b.

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