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Distributive Property of Multiplication

If 4x/2x + y ...

Question

If $\frac{4^{x}}{2^{(x + y)}} = 8$ and $\frac{9^{y}}{3^{5 y}} = \frac{1}{27}$ , what is the value of xy?

A

3

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B

4

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C

5

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D

6

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Solution

The correct option is B 4

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Similar questions

\frac{4^{x}}{2^{x + y}} = 8

\frac{9^{x + y}}{3^{5 y}} = 243

x

y

are real numbers, then

x y

(2 x - 3 y) = 10

x y = 8

, find the value of

4 x^{2} + 9 y^{2}

\frac{2}{x} + \frac{3}{y} = \frac{9}{x y} and \frac{4}{x} + \frac{9}{y} = \frac{21}{x y}

, find the values of x and y.

2 x - 9 y = 11

x + 12 y = - 8

, compute the value of

x + y

.

x^{2} + 2 x y - 35 y^{2} - 4 x + 44 y - 12 = 0

5 x + λ y - 8 = 0

are concurrent then the value of

λ

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