Which of the following equations demonstrate that the set of polynomials is not closed under the certain operations? A. Subtraction: (3x4 + x) - (-2x4 + x) = 5x4
B. Multiplication: (x2 - 5x+3)(x - 5) = x3 - 10x2 +28x - 15
C. Division: (x2+x)=(x + 1) =X
D. Division: (x2 - 5x + 3) + (x-5) = x + -3/X-5

Factor the polynomial 8y^2 - 72 btw "^" means exponent

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

Consider the function represented by the equation 1/2 j + 1/4 k equals 3 which shows the equation written in function notation with j as the independent variable