A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed
iting) and variable costs (such as printing). There are two production methods it could use. With one method, the one-time fixed costs will total $23,245 , and the variable costs will be $21.50 per book. With the other method, the one-time fixed costs will total $46,389 , and the variable costs will be $10.50 per book. For how many books produced will the costs from the two methods be the same?
Let assume that Earth is a sphere, the following trigonometric diagram is constructed and presented below. The central angle is given by this inverse trigonometric equation:
The distance of the portion of Earth that can be seen is:
