In solving real-world problems such as estimating a crowd size, the number of possible telephone numbers, or the answer to a fermi question, why is it necessary to first make some reasonable assumptions about the situation?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps