It is known that for each positive integer k, the amount of interest earned by an investor in the k-th period is 2k. Find the amount of interest earned by the investor from time 0 to time n, n a fixed positive integer.

Suppose that the world price of steel is $100 a ton, india does not trade internationally, and the equilibrium price of steel in india is $60 a ton. suppose that india now begins to trade internationally. the price of steel in india the quantity of steel produced in india a. does not change; does not change b. falls; increases c. falls; decreases d. rises; decreases e. rises; increases the quantity of steel bought by india india steel. a. increases; exports b. decreases; imports c. decreases; exports d. does not change; neither imports nor exports e. increases; imports

At the local level, the main role of ctsos is to encourage students to become urge them to programs and competitive events. 1. a.interns b.trainees c.members 2. a.participate b.train c.win

True or false: a fitted model with more predictors will necessarily have a lower training set error than a model with fewer predictors.