Answer:
If its written as the fourth root of (81^3) the answer is 27.
Answer:
-3
Step-by-step explanation:
4^x = (1/8)^(x+5)
(2^2)^x = (2^-3)^(x+5)
2^2x = 2^(-3x - 15)
Since both sides have the same base of 2, then the exponents are equal
So
2x = - 3x - 15
5x = -15
x = -3
The third answer is correct
Answer:
23
Step-by-step explanation:
3 * [2 + (12 - 2 * 4)] + 5
~Multiply whats in parenthesis
3 * [2 + (12 - 8)] + 5
~Subtract whats in parenthesis
3 * [2 + (4)] + 5
~Add whats in brackets
3 * 6 + 5
~Multiply
18 + 5
~Add
23
Best of Luck!
