5 solved examples of derivatives

For which rational expression is -2 an excluded value of x?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?