Question

What is the value of 9x^2y^-1 for x = 1 and y = 2?​

Answer 1

`{9x}^(2) {y}^( - 1) \\ x = 1 \\ y = 2 \\ \\ 9( {1})^(2) {(2)}^( - 1) = 9 * 1 * \frac{1}{{2}^(1)} \\ = (9)/(2) \\`

= 4,5

Answer 2

4.5

explanation:

see photo for detailed analysis