J'ai besoin d'aide svp Soit A et B deux ensembles non vides
1)démontrer que A est inclus dans B équivaut à dire P(A) est inclus dans P(B)
2) montrer que P(A ∩ B)= P(A)∩ (B)
3)*montrer que P(A)UP(B) Est inclus dans P(AUB)
* a t on P(A) U P(B) = P(AUB)?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Maria walks a round trip of 0.75 mile to school every day. how many miles will she walk in 4.5 days

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution