2 In the diagram below of ABC, CD is the bisector of ∠BCA, AE is the bisector of ∠CAB, and BG is drawn. Which statement must be true?
1) DG = EG
2) AG = BG
3) ∠AEB ≅ ∠AEC
4) ∠DBG ≅ ∠EBG

What is the absolute value of the complex number -4-sqrt2i

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?

What is negative 3/9 times negative 2/8 ?