The expression LaTeX: -x^2+70x-600− x 2 + 70 x − 600 represents a company’s profit for selling x items. For which number(s) of items sold is the company’s profit equal to $0? Group of answer choices 0 items 20 items and 30 items 10 items and 60 items

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units