Final answer:
To simplify the expression (-2/3√)(9√3), multiply the numbers outside the square root and the numbers inside the square root separately.
Step-by-step explanation:
To simplify the expression (-2/3√)(9√3), we can multiply the numbers outside the square root and the numbers inside the square root separately.
-2/3 multiplied by 9 is -6.
√3 multiplied by √3 is 3.
So, the simplified expression is -6√3. Therefore, the correct answer is option a. -6√3.