The cost, C, of an item (the price paid by a retailer) plus the markup, M, on that item (the retailers profit) equals the selling price, S, of the item. The formula is C+M=S. The selling price...

Country A has a growth rate of 3.9% per year. The population is currently 5 comma 226,000, and the land area of Country A is 20,000,000,000 square yards. Assuming this growth rate continues and is...

Suppose that P is invested in a savings account in which interest, k, is compounded continuously at 3% per year. The balance P(t) after time t, in years, is P(t)=Pe^ kt. a) What is the exponential...

Use the vertex (h, k) and a point on the graph (x, y) to find the general form of the equation of the quadratic function. (h, k) = (−4, −1), (x, y) = (−6, 3)

A 40-in. piece of string is cut into two pieces. One is used to form a circle while the other is used to form a square. How should the string be cut so that the sum of the areas is a minimum?

Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the given...

Paul has \$60,000 to invest. His intent is to earn 14% interest on his investment. He can invest part of his money at 8% interest and part at 16% interest. How much does Paul need to invest in each...

given the following equatio y=4x-5  if it triples what happens to y?