The diagram shows a rectangle, ABDE, and two congruent triangles, AFE and BCD.
area of rectangle ABDE = area of triangle AFE + area of triangle BCD
AB: AE = 1:3
Work out the length of AE.
In all working, let the length of AE be a cm.

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

For the equations below which statement is true ?