If the perimeter of an equilateral triangle is 30 ft, what is the area?

The equation respenting the left table is

Which of the following expressions is equal to 2x^2+8

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25