In an experiment the hypothesis is if the wavelength of the light shining on a plant is shortened, the rate of
photosynthesis is slowed down in this experiment is performed, the independent variable
will be the wavelength of the light
will be the plant on which the sight is shining
wil be the rate of photosynthesis
cannot be determined

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)?

Hey i really need some solving this problem: 1. encrypt this binary string into cipher text: 110000. include in your answer the formula the decoder would use to decrypt your cipher text in the format (coded answer) x n mod (m) = y & 2. decrypt this cipher text into a binary string: 106 you.

Multiple choice project create a program with two multiple choice questions. 1. users have two attempts only, show attempt number each time. hint: while loop with break control. (20%) 2. only one correct answer for each question, use switch case for each question. (20%) 3. show total score after the two questions are answered. hint: . (20%) 4. user have options to answer the two questions again if first attempt score is not 100%. hint: if statment. (20%) 5. use string method .toupper() to allow users to enter with lowercase or uppercase letters. (20%) 1. where is the capital of the state of florida? a. orlando b. tallahassee c. miami d. tampa b 2. where is walt disney world park located in florida? a. orlando b. tallahassee c. miami d. tampa a