18 of the last 30 cars cars that passed you were black. what is the probability the next car will be black?

P ( black car) = 3/5

Step-by-step explanation:

P( black car) = black cars/ total cars

                     = 18/30

                     = 3/5

x intercept = (-1,0)   (4,0)

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6