A QUADRATIC REGRESSION GAVE ME THE FOLLOWING EQUATION: Y= 3X^2 +2X +20 WHAT IS THE VALUE OF Y WHEN X=12? A. 492
B. 550
C. 476
D. 151

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?