If someone has your IP address , when you change it .. they can't get no access of you? Or they still can?

They most likely cannot because they will still be trying to use the same one, but yours change so.

Explanation:

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.

answer; complain or request hazard correction from your employer;