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)?

This needs to be done quick you are studying different function tools and begin working with this function y=-160-9(x) use the equation to answer the question y=-160-9(x) what is the y value when x equals -13? y=-160-9(x)

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15