11. Shaina is creating a custom glass table that has a top in the shape of a regular octagon. She wants
to find the area of the octagon to determine the amount of glass needed. The top of the table has an
apothem that measures 1.2 meters and each side of the octagon measures 1 meter. A diagram of the
tabletop is shown below.
Custom Glass Tabletop
Which of the following is closest to the area, in square meters, of the octagon?
A. 0.6 m2
B. 4.8 m2
C. 8.0 m2
D. 9.6 m2

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.

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?

If the discriminant if a quadratic equation is 4 which statement describes the roots?