Growing up with dyslexia, Stephanie always struggled in English and Reading. Math was a breeze for her, though. Along the way, there were a few teachers who really worked closely with Stephanie to help her absorb the information she needed, and they showed her how to make learning fun! Stephanie particularly loved studying trigonometry and even her high school teacher is having difficulty keeping up with her. Now that she has been able to figure out how to study, education no longer scares Stephanie. In fact, she finds it a great way to explore and understand the world around her

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?

When pasting an existing chart into a word document, you can choose to using the paste options button. a. paste the chart as a picture b. embed the chart c. add the chart while keeping the destination formatting intact d. insert the chart while keeping the source formatting intact

If an image has only 4 colors, how many bits are necessary to represent one pixel’s color?