Final answer:
To simplify 1/-2h⁻⁹ with positive exponents, change the division to multiplication, flip the fraction, move the negative exponent, and change its sign.
Step-by-step explanation:
To simplify the expression 1/-2h-9 with positive exponents, we can start by changing the division to multiplication by flipping the fraction: -2h-9/1. Now, we can simplify the negative exponent by moving it to the opposite side of the fraction and changing its sign: -1/(2h9). This is the simplified expression with positive exponents.