You developed a proposal for the president of your company several months ago. You know you saved it, but you are not sure where. You created the proposal on your Mac using Snow Leopard.

Which of the following is the easiest option for finding the document? (Choose all that apply)

a. Use Get Info on each of the folders that you think the document might be in. Check the creation date. When you find dates that might look promising, open up the folder and check the documents.

b. Use the search tool Sherlock to search for text within files.

c. Use the UNIX command line prompt to search your Mac for the proposal using find or locate.

d. Use Spotlight to search for the document you are looking for on your Mac.

Convert the quartstogallons class to an interactive application. instead of assigning a value to the number of quarts, accept the value from the user as input.

1. package newton’s method for approximating square roots (case study 3.6) in a function named newton. this function expects the input number as an argument and returns the estimate of its square root. the script should also include a main function that allows the user to compute square roots of inputs until she presses the enter/return key. 2. convert newton’s method for approximating square roots in project 1 to a recursive function named newton. (hint: the estimate of the square root should be passed as a second argument to the function.) 3. elena complains that the recursive newton function in project 2 includes an extra argument for the estimate. the function’s users should not have to provide this value, which is always the same, when they call this function. modify the definition of the function so that it uses a keyword parameter with the appropriate default value for this argument, and call the function without a second argument to demonstrate that it solves this problem. 4. restructure newton’s method (case study 3.6) by decomposing it into three cooperating functions. the newton function can use either the recursive strategy of project 1 or the iterative strategy of case study 3.6. the task of testing for the limit is assigned to a function named limitreached, whereas the task of computing a new approximation is assigned to a function named improveestimate. each function expects the relevant arguments and returns an appropriate value. 5. a list is sorted in ascending order if it is empty or each item except the last one is less than or equal to its successor. define a predicate issorted that expects a list as an argument and returns true if the list is sorted, or returns false otherwise. (hint: for a list of length 2 or greater, loop through the list and compare pairs of items, from left to right, and return false if the first item in a pair is greater.)

1. technician a says horsepower information can be used by consumers to compare the power of different automobile engines. technician b says that manufacturers will often list the horsepower output of their engines in the online service information. who is right?