In the diagram of equilateral triangle abc shown
below, e and f are the midpoints of ac and bc,
respectively.
if ef = 2x + 8 and ab = 7x - 2, what is the
perimeter of trapezoid abfe?
1) 36
2) 60
3) 100
4) 120

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.