Which of these sets of ordered pairs would define a line with a negative slope? A (5,5) & (0,1) B (2,3) & (-4,-2) C (3,6) & (5,1) D (2,3) & (7,6)

How can you construct perpendicular lines and prove theorems about perpendicular lines

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

How many verticies does a triangular prims have