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jessv01
05.04.2021 •
Mathematics
Among the contestants in a competition are 50 women and 26 men. If 5 winners are randomly selected, qhat js the probability that they are all men?
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Ответ:
Probability that all winner are men = 0.0035 (Approx.)
Step-by-step explanation:
Given:
Number of women = 50
Number of men = 26
Total number winner = 5
Find:
Probability that all winner are men
Computation:
Total competitor = 50 + 26 = 76
Probability that all winner are men = 26/76 x 25/75 x 24/74 x 23/73 x 22/72
Probability that all winner are men = 7,893,600 / 2,216,980,800
Probability that all winner are men = 0.0035 (Approx.)
Ответ:
The triangle ABC is equilateral.
⇒ AB = BC = AC
6x - 3 = 5x ⇒ 6x - 5x = 3 ⇒ x = 3 cm
6x - 3 = 3x + 6 ⇒ 6x - 3x = 6 + 3 ⇒ 3x = 9 ⇒ x = 9/3 = 3 cm
5x = 3x + 6 ⇒ 5x - 3x = 6 ⇒ 2x = 6 ⇒ x = 6/2 = 3 cm
⇒⇒⇒ x = 3AB 6x - 3 = 6 - 3 + 3 = 18 - 3 = 15
AC = 3x + 6 = 3 × 3 + 6 = 9 + 6 = 15 cm
BC = 5x = 5 × 5 = 15 cm
⇒⇒⇒ AB = AC = BC = 15 cm