X2 - 20 = 0
Solve for X

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

The length of the shadow of a building is 120 meters, as shown below: building shadow 120 m what is the height of the building? (1 point)

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?