answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aksik
7 days ago
12

Consider a set A = {a1, . . . , an} and a collection B1, B2, . . . , Bm of subsets of A (i.e., Bi ⊆ A for each i). We say that a

set H ⊆ A is a hitting set for the collection B1, B2, . . . , Bm if H contains at least one element from each Bi – that is, if H ∩ Bi is not empty for each i (so H "hits" all the sets of Bi). We define the Hitting Set Problem as follows. We are given a set A = {a1, . . . , an}, a collection B1, B2, . . . , Bm of subsets of A, and an non-negative integer k. We are asked: is there a hitting set H ⊆ A for B1, B2, . . . , Bm so that the size of H is at most k? Prove that the Hitting Set problem is NP-complete
Computers and Technology
You might be interested in
List at least six things you would check for if you were asked to evaluate the workspace of an employee for ergonomics
maria [1035]

Evaluating the risks related to employees remaining stationary for extended periods at their workstations is critical. Below is a compilation of key ergonomic principles that aid in identifying ergonomic risk factors.


<span>1.    </span>Are employees kept in a neutral posture?

<span>2.    </span>Does the workstation provide opportunities for movement and stretching?

<span>3.    </span>Is the lighting sufficient?

<span>4.    </span>Are the chairs adjustable as needed?

<span>5.    </span>Are suitable footrests available?

<span>6.    </span>Is there additional storage to enhance desk organization?






0 0
2 months ago
To what extent are the following computer systems instances of artificial intelligence:
oksian1 [950]

Answer: Scanners used in supermarkets for barcodes and voice-activated phone menus are not examples of artificial intelligence.

Explanation:

(a) Supermarket barcode scanners can read codes, yet they lack the capability to employ machine learning techniques for learning patterns within the codes. Machine learning is a crucial aspect of artificial intelligence (AI), thus indicating they do not qualify as instances of AI. Likewise, voice-activated menus can only present options and do not carry out any complex tasks.

In contrast, web search engines and internet routing algorithms demonstrate dynamic and intelligent capabilities in processing and delivering information to users.

Hence, these are considered examples of AI.

8 0
3 months ago
In cell F15, insert a function that will automatically display the word Discontinue if the value in cell D15 is less than 1500,
ivann1987 [1066]

Answer:

=IF(D15<1500, "Discontinue", "No Change")

Explanation:

In an Excel environment, you should navigate to cell F15 and apply the IF function. The structure of the IF function is

IF(<condition>, <value if true>, <value if false>)

Your condition is placed before the first comma, which is D15 < 1500.

The second segment, located before the second comma, is the text to display when D15 is below 1500, which is "Discontinue".

Finally, the last part should show text if D15 is 1500 or higher, which is "No Change".

The complete formula can be expressed as =IF(D15<1500, "Discontinue", "No Change")

3 0
3 months ago
If Mark is developing a website to be optimized for mobile devices, what would be the top-level domain?
Rzqust [1037]
The top-level domain (TLD) is the highest level in the domain name system (DNS) hierarchy. In the context of the Internet's DNS, the TLD is operationally positioned within the root zone of the namespace. Generally,.com is regarded as the premier choice, followed closely by.net and.org. For a website tailored for mobile optimization,.com would be the most suitable option.
5 0
1 month ago
Which of the following best describes how computing devices represent information? A. A computer will either represent informati
oksian1 [950]

Answer:

The answer is B.

Explanation:

The justification for choosing B is that "bytes" represent the correct method for storing data in binary form of 0s and 1s.

5 0
2 months ago
Read 2 more answers
Other questions:
  • How concerned are you about the security of rtos in cars smart homes and wearable technology?
    15·1 answer
  • Sarah works in a coffee house where she is responsible for keying in customer orders. A customer orders snacks and coffee, but l
    13·2 answers
  • Some early computers protected the operating system by placing it in a memory partition that could not be modified by either the
    5·1 answer
  • An Internet user has a need to send private data to another user. Which of the following provides the most security when transmi
    14·2 answers
  • 5.15 LAB: Output values below an amount Write a program that first gets a list of integers from input. The input begins with an
    9·2 answers
  • A developer writes a trigger on the Account object on the before update event that increments a count field. A workflow rule als
    12·1 answer
  • Allison wants to use equations to simplify the process of explaining something to the Sales team, but the default eq
    8·2 answers
  • The function below takes two numeric parameters. The first parameter specifies the number of hours a person worked and the secon
    13·1 answer
  • Given what you have learned on DHCP, discuss the pros and cons of having a DHCP server on each and every network segment versus
    9·1 answer
  • A business wants to centralize its administrative tasks. At the same time, it wants the existing systems to manage and sustain t
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!