11. The figure below represents a plot of land. Each unit of the coordinate grid represents 10 yards. Use the figure t answer the following questions. Show all work (2 pts) 0 ABA (12+1 16t1 = 1 2 BC = Dow 1 17² = 2 x 4 =p a. What is the area of the square? Round to the nearest tenth. Show work or explain your answer. What is the perimeter of the square? Round to the nearest tenth. Show work or explain your answer. 16,5 The coordinate plane below shows locations of items in a town.

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations