B, C, D and E are points on a circle. AB is the tangent at B to the circle.
AB is parallel to ED.
Angle ABE = 73°
Work out the size of angle DCE.
Give a reason for each stage of your working.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

How can (square root of 25) ^2 be rewritten?

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.