Answer:
72.25 in^2
Step-by-step explanation:
Formula
Area = s^2 where s is the length of a side.
Given
s = 8.5 in
Solution
Area = s^2
Area = 8.5^2 = 8.5 * 8.5
Area = 72.25 in^2
0.024
Given,
Red marbles = 4,
Green marbles = 7,
Total marbles = 4 +7 = 11,
Ways of choosing 3 marbles =
Ways of choosing 3 red marble =
Hence, the probability of 3 red marble =
≈ 0.024