At 3pm corett"s shadow is 1.38 meters long. her height is 1.87 meters. at the same time a tree's shados is 3.03 meters long. how tall is the tree?

What is the area of the trapezoid shown ?

Is it greater than or less than7*3_9*2

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.