It costs a small recording company $17680 to prepare a compact disc. This is a one-time fixed cost that covers recording package design, and so on. Variable cost, including such things as manufacturing, marketing, and royalties, are $4.60 per CD. Suppose that the CD is sold to retailers for $8 each.

i really dont know

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

m∠a is 90°

m∠b is 40°