The sign at the end changes because both sides of the equation are being divided by a negative number.
Given:
8 tiles
radius from the center of the archway to the inner edge of the tile. 7 ft.
radius from the center of the archway to the outer edge of the tile. 8 ft = 7 ft + 1 ft.
Area of a semi circle = π r² / 2
A = (3.14 * (7ft)²) / 2 = (3.14 * 49ft²) / 2 = 153.86 ft² / 2 = 76.93 ft²
A = (3.14 * (8ft)²) / 2 = (3.14 * 64ft²) / 2 = 200.96 ft² / 2 = 100.48 ft²
100.48 ft² - 76.93 ft² = 23.55 ft²
23.55 ft² / 8 tiles = 2.94 ft² per tile.
He invested $3000 in black and white film
He invested $1000 in color film
Answer:
4x-5y=3
-3=4x-5y
Step-by-step explanation:
4x-5y = 3
4x-5y = -3
both statements have different answers but has the same problem making the statement x=x and 0=0 making it have no solution
