3. six flags charges $16 for a refillable
souvenir cup, then $1 for each refill
using that cup. disneyland charges $20
for a refillable mickey mouse cup, and
charges $0.75 for each refill using the
cup. write an equation to model the
number of refills when the price of your
drinks at each park will be the same.

Convert the cartesian equation (x 2 + y 2)2 = 4(x 2 - y 2) to a polar equation. choices: r4 = -4r2 r2 = 4cos2θ r2 = 4sin2θ

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 statement about 6x2 + 7x – 10 is true?