2. The amount sold of a pharmaceutical product per month has the continuous uniform distribution between 9 and 11 pounds. The profit obtained is 8 times the amount sold–squared. For example, if 9.7 pounds are sold, then the profit is 8*9.72. What is the mean and variance of the profit?

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.