A company's costs can be modelled by the function C(x)=1600−20x+0.1xˆ2 for 40≤x≤200, where x is the number of units produced per week. How many units should the company produce per week to minimise its costs?

Which of the following are accepted without proof in a logical system? check all that apply.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Plz. yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?