Question

(7^x)^y = 7 What is x • y?

Answer 1

Answer:

$x \cdot y=1$

Step-by-step explanation:

$(7^x)^y = 7$

Apply exponent rule $(a^b)^c=a^{bc}$:

$\implies7^{xy}=7^1$

$\implies x \cdot y=1$

Possible values for x and y:  $x=\dfrac12 \ \ \ \ \ y=2$