A line contains points M(1, 3) and N(5, 0). What is the slope of MN? Group of answer choices

3/4

4/3

-3/4

-4/3

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