Donna makes a website feature that will recommend books to users by asking questions about their likes and dislikes. There's a bug in the program, so she decides to ask her friend Martha to look over her code. Before Martha looks at the code, she asks Donna to describe it. Which of the following parts of Donna's description is an abstraction? Select TWO answers. A "The ask method prints out a multiple choice question to the user and then records the user's answer in a list." B "After all the questions have been asked, the match method retrieves three book recommendations for each answer selected and puts them in a new list." С "From there, the match method uses the selection sort algorithm to sort the list of recommendations D "Finally, the match method uses a loop to compare each item in the list to the previous item. If there are two items that are the same, that item is printed out for the user to see."

X-bar = sigma(Xi) / n, Y-bar = sigma(Yi) / n.

The center of gravity approach is a way to choose a distribution center where the cost of distribution is kept to a minimum.It is a technique for locating a facility such that transportation expenses or transit time to different locations are kept to a minimum.Clustering is the term used to describe when businesses locate close to other comparable businesses.

The gravity center is determined by adding the weight/volume average value times this same distance times that volume segment multiplied by the weight.

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When not air-cooled, the heat produced by the motor in a hermetic motor compressor assembly is eliminated by refrigerant gas.

A compressor in the refrigerant is said to be a hermetically sealed compressor when both the compressor and motor operate on the same shaft and both are enclosed in a common casing. These kinds of compressors eliminate the use of a crankshaft seal, which is vital in open-type compressors to prevent leakage of refrigerant.

Typical refrigerants include gases such as fluorocarbons, which are chemical compounds of fluorine and carbon. They were formed mainly as refrigerant gases to be used for air conditioners and refrigerators.

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When the charge on a capacitor plate increases while it is still connected to the battery, or when a dielectric slab is inserted between the plates, the capacitance (C) increases, the potential difference (V) between the plates stays constant, and the amount of energy stored in the capacitor increases.

The dielectric is attracted towards the capacitor's plates by the charges on its surface, so it tends to stay inside the device. The capacitor reduces the quantity of energy retained by lowering the dielectric between the plates.

Similar to C, the capacitor's potential energy reacts to changes. With the addition of a dielectric, C rises in direct proportion to K. Additionally, as the dielectric constant, K, rises, Q and stored potential energy do as well.

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The correct answer is there is no need for a prerequisite; the method will always function as intended.

There is no need for a prerequisite; the method will always function as intended. An array with 10 entries is created by the declaration that follows: values for double[] = new double[10]; Any integer between 0 and 9 can serve as an index. Instead of creating many variables to represent different values, array variables are an option. An array variable's format can either be a collection of one or more name-value pairs or a list of distinct values (an array list) (a JSON array ). Just include the assignment operator (=), the variable name to which the value should be transferred, the array name, and the element index in parentheses. Two-dimensional arrays can be used to hold many records and various fields.

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