Triangle DEF has vertices D(4, -3), E(-2, 1), and F(-9, -6). Find the area of the triangle.

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?