Computers and Technology

Among the following two algorithms, which is the best for evaluating f(x) = tan(x) - sin(x) for x 0? Briey explain. (a) (1/cos(x)1) sin (x), (b) tan (x) sin^2 (x) / (cos(x) + 1).
1 Answer
Where is the typical location of a touchpad inside of a laptop?Attached to the keyboardNext to the RAMUnder the bottom panelUnder the case
1 Answer
A customer contacts the help disk stating a laptop does not remain charged for more than 30 minutes and will not charge more than 15%. Which of the following components are the MOST likely causes the issue? (Select three.)A. LCD power inverterB. AC adapterC. BatteryD. ProcessorE. VGA cardF. MotherboardG. Backlit keyboardH. Wireless antenna
1 Answer
Write a while loop that prints userNum divided by 2 (integer division) until reaching 1. Follow each number by a space.
1 Answer
Which BEST identifies the primary function of the key words above?A)The key words help identify your reading audience,The key words help identify your writing purpose or goal,The key words help determine how much evidence you should cite,D)The key words help determine the most appropriate length for your essay,Submit
1 Answer
Explain how an appliance firewall, such as pfSense, might be a better fit for a large enterprise than an operating system-specific firewall, such as Windows Firewall.
2 Answers
3.14 LAB: Input and formatted output: Caffeine levels A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-life of about 6 hours in humans. Given caffeine amount (in mg) as input, output the caffeine level after 6, 12, and 24 hours. Use a string formatting expression with conversion specifiers to output the caffeine amount as floating-point numbers.
2 Answers
A researcher administers a standardized test to the students in a school testing a new program as well as to students in a similar school as a control group. To what extent is comparison of the average scores for the two groups of students useful for determining the effects of the program?Of limited usefulness as a pilot study but has many threats to validity T/F
1 Answer
Outputting all combinations. Output all combinations of character variables a, b, and c using this ordering abc acb bac bca cab cba. If a = 'x', b = 'y', and c = 'z', then the output is: xyz xzy yxz yzx zxy zyx Your code will be tested in three different programs, with a, b, c assigned with 'x', 'y', 'z', then with '#', '$', '%', then with '1', '2', '3'.#include using namespace std; int main(){ char a; char b; char c; cin >> a; cin >> b; cin >> c;/* Your solution goes here */ cout
2 Answers
If Tracy starts on the left edge of the canvas and moves forward 50 pixels, how many times will this code need to be repeated to have Tracy reach the right edge of the canvas?answer choices4 times8 times10 times50 times
2 Answers
Which of the following best describes the infrastructure ISPs provide?OCAB GAMEphone service, websites and filesemail, search engines and videosREAD &RESPONDcables, towers and underground tubesQUIZDcomputers, keyboards and ethernet cables
2 Answers
During data declaration, a name is binded to a memory location, what else can be identify as part of this process?
1 Answer
What is the graphic design term for page number?
1 Answer
Jonah wants to type an assignment using Word. Arrange the steps he needs to follow in the correct order. Click the Blank document icon.Click the File tab.Click the New tab. Open the Word application.
2 Answers
Which of the following refers to a descriptive technique involving the systematic collection of quantitative information? A. Longitudinal design B. Telemarketing C. Cross-sectional design D. Experiments E. Casual research
1 Answer
One acre of Land is equivalent to 43,560 square feet. Write a program that ask the user to enter the total square feet of a piece of land. Store 43,560 in a constant variable. Use the constant variable in the algorithm. Return the answer in acres, format your answer with 2 decimal places.
2 Answers
A ________ is a self-contained program that spreads through a computer network by exploiting security holes in the computers connected to the network. (Hint: one word)
1 Answer
Which properties are true of String objects? a. Their lengths never change b. The shortest string has zero length c. Individual characters within a String may be changed using the replace method d. The index of the first character in a string is one e. Only A and B are true
1 Answer
George is the risk manager for a U.S. federal government agency. He is conducting a risk assessment for that agency's IT risk. What methodology is best suited for George's use? A. Risk Management Guide for Information Technology Systems (NIST SP800-30). B. CCTA Risk Analysis and Management Method (CRAMM). C. Operationally Critical Threat, Asset, and Vulnerability Evaluation (OCTAVE). D. ISO/IEC 27005, "Information Security Risk Management".
2 Answers
For each of the following algorithms medicate their worst-case running time complexity using Big-Oh notation, and give a brief (3-4 sentences each) summary of the worst-case running time analysis. (a) Construction of a heap of size n , where the keys are not known in advance. (b) Selection-sort on a sequence of size n.(c) Merge-sort on a sequence of size n. (d) Radix sort on a sequence of n integer keys, each in the range of[ 0, (n^3) -1] (e) Find an element in a red-black tree that has n distinct keys.
1 Answer
Owners of individual domains get to decide what content is published on their websites. Why might this autonomy be important to the development of the Internet? How or why does autonomy scale?
1 Answer
rite a method so that the main() code below can be replaced by simpler code that calls method calcMilesTraveled(). Original main(): public class CalcMiles { public static void main(String [] args) { double milesPerHour
1 Answer
Your network is divided into two segments. As the signal travels down the first segment, it becomes weak. To amplify the signals passing to the second segment, the network engineer installed a networking device. Which networking device did the engineer install?
1 Answer
In information systems, _____ is information from a system that is used to make changes to input or processing activities.
1 Answer