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UkoKoshka [18]
2 years ago
14

Why does my smoke detector keep beeping even after i change the battery?.

Computers and Technology
1 answer:
UkoKoshka [18]2 years ago
8 0

Sometimes they just beep for no reason or the batteries are faulty

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When you go to a website, your web browser requests a web page from:
lakkis [162]

Answer: web server

Explanation:

When you go to a website, your web browser requests a web page from the web server. For this to happen, the IP address for the webpage has to be identified first, tmaftee which the browser will request appropriate data from the web server.

Such request comes in form of data packet and takes place through HTTP and.utnhas all the necessary information that is needed by the web server for the delivery of the webpage data.

3 0
3 years ago
You are given a list of n positive integers a1, a2, . . . an and a positive integer t. Use dynamic programming to design an algo
Anna11 [10]

Answer:

See explaination for the program code

Explanation:

The code below

Pseudo-code:

//each item ai is used at most once

isSubsetSum(A[],n,t)//takes array of items of size n, and sum t

{

boolean subset[n+1][t+1];//creating a boolean mtraix

for i=1 to n+1

subset[i][1] = true; //initially setting all first column values as true

for i = 2 to t+1

subset[1][i] = false; //initialy setting all first row values as false

for i=2 to n

{

for j=2 to t

{

if(j<A[i-1])

subset[i][j] = subset[i-1][j];

if (j >= A[i-1])

subset[i][j] = subset[i-1][j] ||

subset[i - 1][j-set[i-1]];

}

}

//returns true if there is a subset with given sum t

//other wise returns false

return subset[n][t];

}

Recurrence relation:

T(n) =T(n-1)+ t//here t is runtime of inner loop, and innner loop will run n times

T(1)=1

solving recurrence:

T(n)=T(n-1)+t

T(n)=T(n-2)+t+t

T(n)=T(n-2)+2t

T(n)=T(n-3)+3t

,,

,

T(n)=T(n-n-1)+(n-1)t

T(n)=T(1)+(n-1)t

T(n)=1+(n-1)t = O(nt)

//so complexity is :O(nt)//where n is number of element, t is given sum

6 0
3 years ago
Analyze the following code (in both cases number has been declared and initialized): Code 1: boolean even; if (number % 2 == 0)
shusha [124]

Answer:

Both codes are correct.The value of even is true when the number is even.

Explanation:

Code 1:

number %2 ==0 means that when dividing number by 2 is the remainder coming out is zero.If it is true then even becomes is true if it is false then else statement is executes in which even becomes false.Means the number is odd.This code is simple and easy to understand.

Code 2:-

This code is a bit tricky and takes time to understand.even becomes true

when the number is divisible by 0 and false when it is not.

8 0
3 years ago
After which problem-solving stage should you take action?
Mumz [18]

Answer:

Option: Making a choice

Explanation:

In a problem solving process, it starts with defining a problem which is the first step that we need to identify the issue.

After that, we should gather the information on the issue that we identify. For example, we are root cause of the problem, what are the possible solutions etc.

Next, we evaluate the information that we collect (e.g. pro and cons of a particular solution).

Next, we make a choice on the solution that we are going to take after further evaluation on all the options we have.

Only after we make a choice, then we can take action based on our chosen solution to solve the problem.

4 0
3 years ago
Question # 2
CaHeK987 [17]

Answer:

ZeroDivisionError

ValuError

Explanation: Edg 2020-2021

6 0
2 years ago
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