What is the standard form of this function? f(x) = -(x-4)2 + 2
A.
f(x) = x2 + 8x - 14
B.
Rx) = -x² + 8%-14
C.
f(x) = x2 + 4x - 30
f(x) = -x2 + 4x - 30
+

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?