A street sign company is making street signs in the shape of equilateral triangles. The side length of each sign is 22 inches. W
hat is the exact altitude length so that the company will be able to know what size box to ship them in?
1 answer:
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Answer:
The required probability is 0.1.
Step-by-step explanation:
red balls = 3
yellow balls = 2
blue balls = 5
Selected balls = 5
Number of elemnets in sample space = 10 C 5 = 1260
Ways to choose 1 red ball and 4 other colours = (3 C 1 ) x (7 C 4) = 105
Ways to choose 5 balls of other colours = 7 C 5 = 21
So, the probability is