A traffic engineer is modeling the traffic on a highway during the morning commute. The average number of cars on the highway at both 6 a. m. and 10 a. m. is 4000. However the number of cars reaches a peak of 6,500 at 8 a. m.. Write a function of the parabola that models the number of cars on the highway at any time between 6 a. m. and 10 a. m.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Ineed to know the answer to this algebra question.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.