NEED THE CORRECT ANSWER ASAP, HELP PLEASE!!! Use a graphing calculator or other technology to answer the question. Which quadratic regression equation best fits the data set?

yˆ=47.062x2−6.815x−0.246

yˆ=0.246x2−6.815x+47.062

yˆ=0.246x2+6.815x+47.062

yˆ=47.062x2−6.815x+0.246

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

What are the solution(s) to the quadratic equation x2 – 25 = 0? o x = 5 and x = -5ox=25 and x = -25o x = 125 and x = -125o no real solution

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?