Chelsea is designing a window with different-shaped pieces of glass. The shapes she is using are listed below. Hexagons
Rectangles
Squares
Trapezoids

Which of the shapes she is using can also be classified as a quadrilateral?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Use sigma notation to represent the following series for 9 terms.