Why does the following statement
show that polynomials are not
closed under division?
( 2 + 3y + 1) = (y + 2) = y +1+-1/
y+2

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.

Which of the following parabolas opens down?

Pls the last one and it has to be like number 6