Of the last 60 people who went to the cash register at a department store , 14 had blonde hair , 17 had black hair , 26 had brown hair and 3 had red hair . determine the empirical probability that the next person to come to the cash register has black hair

17/60

Step-by-step explanation:

Of the 60 people, 17 had black hair.  So the empirical probability is 17/60.

linear pair postulates

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°