Evaluate: 10011 + 1001 + 11 (all base 2)

11111

Step-by-step explanation:

In binary, 10011 = 19, 1001 = 9, 11 = 3

19 + 9 + 3 = 31, which is 11111 in binary.

Hope it helps :) and let me know if you want me to elaborate.

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

207/8 is the right