memester74
03.08.2019 •
Mathematics
Ajar contains 4 red marbles numbered 1 to 4 and 2 blue marbles numbered 1 to 2. a marble is drawn at random from the jar. find the probability of the given event. (a) the marble is red your answer is : 2/3 correct preview (b) the marble is odd-numbered your answer is : 1/2 correct preview (c) the marble is red or odd-numbered your answer is : 4/3 incorrect preview (d) the marble is blue or even-numbered your answer is : 2/3 correct preview
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Ответ:
billes nombre impair = 3/6 = 1/2
rouge ou impair = 5/6
bleu ou pair = 4/6 = 2/3
Ответ:
so the perimeter = 5 + 5√3 + 10 = 15 + 5√3 or appr. 23.66
Step-by-step explanation:
The sides of a 30-60-90 triangle are in the ratio of
1 : √3 : 2
so your triangle will be in the ratio a : b : 10
a/1 = 10/2
a = 5
b/√3 = 10/2
b = 5√