Cho tập hợp X={-3;-2;0;1;2}. Trên X xác định quan hệ S như sau: (a;b) ∈ ↔ a2- b2= a-b,∀a;b∈X
Chứng minh rằng S có tính chất đối xứng

Which function is represented by the graph

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?