Which function is a quadratic function?
C(x) = 6x + 3x3
D(x) = x - 8x4
p(x) = -5x – x2
K(x) = 2x2 + 9x

The pyramid shown has a square base that is 24 centimeters on each side. the slant height is 16 centimeters. what is the lateral surface area?

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.

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?