. Consider an array of size nine with the numbers in the following order: 40, 60, 20, 80, 70, 90, 30, 10, 50. (a) Create the heap using the algorithm described in class. Show the heap as a tree. Show the heap as an array. Exactly how many comparisons did heap creation use? (b) Start with the heap created in Part (a). Show the array after each element sifts down during the Finish phase. How many comparisons does each sift use? What is the total number of comparisons after heap creation?

Jackson is teaching the decimal number system. he wants his students to know how to expand numbers by powers of 10. which is the correct order in which digits are assigned values in the decimal number system?

Singing in the rain: this first part of the film shows the early history of motion picture. how accurate do you think the portrayal of the early motion picture industry is? why? is historical accuracy important in films and theater productions? explain.

What are some ways to use a range name in a formula? check all that apply. in the defined names group, click use in formula, and then select the desired name. begin typing the name in the formula, select a name from the autocomplete list, and use the arrow keys and tab key to enter the name in the formula. begin typing the formula, and then click and drag with the mouse to select the cells to include in the formula. right-click one of the cells in the range. click formula options, and use the dialog box to add the name.