Pentagon is a pentagonal-shaped building near washington, dc, that is home to the united states department of defense. write a formula for the perimeter of a regular pentagon in terms of the length of a side. evaluate the formula to find the perimeter of the pentagon, which has a side length of 921 ft.

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

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.

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?