Find the numerical equivalent of 9^9*9^-6

Answer 1

To find the numerical equivalent of 9^9 * 9^-6, we can simplify the expression using the rule of exponents that states a^m * a^n = a^(m+n).

Applying this rule:
9^9 * 9^-6 = 9^(9 + (-6)) = 9^3.

Now we can calculate the value of 9^3:
9^3 = 9 * 9 * 9 = 729.

Therefore, the numerical equivalent of 9^9 * 9^-6 is 729.