Elliot has a total of 26 books. he has 12 more fiction books than nonfiction books. let x represent the number of fiction books and y represent the number of nonfiction books. this system of equations models the number of books. x + y = 26 x – y = 12 elliot added the two equations and the result was 2x = 38. solve the equation. how many fiction books does elliot have? 15 ⇒ 19 fiction books how many nonfiction books does elliot have?

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Which function best fits the following points?