1answer.
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
lorasvet [3.4K]
3 years ago
8

In which decade did cell phones become available to the public?

Computers and Technology
1 answer:
JulijaS [17]3 years ago
6 0

Answer:

1980s

Explanation:

Source:

https://www.cbc.ca/news/technology/5-major-moments-in-cellphone-history-1.1407352

You might be interested in
I am having trouble with this python question. I am in a beginner level class also so any solution that isn't too complex would
Delicious77 [7]

The code:

filename = input("> ")

with open(filename, "r") as file:

   items = file.read()

   items = items.split("\n")

   for index, item in enumerate(items):

       items[index] = item.split("\t")

   for item in items:

       if item[3] == "Available":

           print(f"{item[1]} ({item[0]}) -- {item[2]}")

Explenation:

1. We make the user enter the file's path, in our case "food.txt". This does only work if the .txt file is in the <u>same</u> directory as our code.

2. We get the content of our .txt file with the "open" function. If we use the "open" function inside of a "with" statement we don't have to deal with closing the file after we opened it. The file will close as soon as we exit the statement. The argument "r" indicates that we only want to read the file, not do anything else with it.

3. However the variable "file" doesn't contain the <u>contents</u> of "food.txt", only the class object of our file (if you try "print(file)" you'll only get nonsense). We can simply get the content of the file by calling ".read()" after.

4. We can separate this long str using the ".split()" function. The split function seperates a string by another sertain string (in our case "\n", since the different items are seperated by a newline). Now "items" is a list of strings.

5. Next we go through all items in "items" and separate them by "\t", again using the ".split()" function. Enumerate makes a list of indexes and values from another list (in our case, "items").

6. Now we have a list of lists of strings. The only thing left to do is go through every item and print it if the item's third item is equal to "Available" (notice that this is case-sensative). And print out the result in the desired format.

The code works for me, please ask me if there is anything you don't understand (or if the code is incorrect). Happy to help :D

5 0
2 years ago
Write a program using integers userNum and x as input, and output userNum divided by x three times.
andrezito [222]

Answer:

# The user is prompted to enter number as dividend

# The received number is assigned to userNum

userNum = int(input("Enter the number you want to divide: "))

# The user is prompted to enter number as divisor

# The divisor is assigned to x

x = int(input("Enter the number of times to divide: "))

# divideNumber function is defined to do the division

def divideNumber(userNum, x):

   # counter is declared to control the loop

   counter = 1

   # the while-loop loop 3 times

   # the division is done 3 times

   while counter <= 3:

       # integer division is done

       # truncating the remainder part

       userNum = userNum // x

       # the result of the division is printed

       print(userNum, end=" ")

       # the counter is incremented

       counter += 1

# the divideNumber function is called

# the received input is passed as parameter

# to the function

divideNumber(userNum, x)

# empty line is printed

print("\n")

Explanation:

The // operator in python works like the / operator in C. The // operator returns only the integer part of division operation. For instance 6 // 4 = 1. The fraction part is discarded.

7 0
3 years ago
Write and application that reads five integers from the user and determines and prints the largest and the smallest integers. Us
mixas84 [53]

Answer:

#include <stdio.h>  

#include <limits.h>  

 

/* Define the number of times you are going  

  to ask the user for input. This allows you  

  to customize the program later and avoids the  

  hard coding of values in your code */  

#define NUMVALS 5  

 

int main(void)  

{  

   int i = 0;  

   int curval = 0;  

   /* Set your initial max as low as possible */  

   int maxval = INT_MIN;  

   /* Set your initial min as high as possible */  

   int minval = INT_MAX;  

 

   /* Loop through and ask the user for the defined  

      number of values */  

   for (i = 0; i < NUMVALS; i++)  

   {  

       /* Ask the user for the next value */  

       printf("Enter the next value: ");  

 

       /* Get the next value from the user */  

       scanf("%d", &curval);  

 

       /* Check to see if this is our biggest or  

          smallest value yet */  

       if (curval > maxval)maxval = curval;  

       if (curval < minval)minval = curval;  

   }  

 

   /* Output the results */  

   printf("The smallest value entered was: %d \n", minval);  

   printf("The largest value entered was: %d \n", maxval);  

 

   /* End the program */  

   return 0;  

}

Explanation:

5 0
3 years ago
What are the missing words in the program?<br> divide(numA,numB):<br> numA/numB
Alex787 [66]

If you just want to get the quotient of numA and numB from the function, it would look like this:

def divide(numA, numB):

   return numA/numB

If you want to get the quotient of numA and numB from the function and then print that value to the screen, it would look like this:

def divide(numA, numB):

   return numA/numB

print(divide(1,1))

You can replace those 1's with any number you want.

7 0
3 years ago
Read 2 more answers
1, and
zhannawk [14.2K]

Answer:

i think (first name last name id Num)

3 0
3 years ago
Other questions:
  • How to select the entire table in microsoft excel
    11·1 answer
  • A construction company has an online system that tracks all of the status and progress of their projects. The system is hosted i
    10·1 answer
  • A database administrator (DBA) must have a clear understanding of the fundamental business of an organization, be proficient in
    11·1 answer
  • ICD-10-CM diagnosis codes are entered in Block 21 of the CMS-1500 claim. A maximum of __________ ICD-10- CM codes may be entered
    14·1 answer
  • What are 2 main differences betweenarrays andstructs?
    7·1 answer
  • The advantage of using a belt drive over chain drive. vice versa
    12·1 answer
  • Why is it NOT a good practice to save everything on the desktop?
    6·2 answers
  • A company is deploying NAFDs in its office to improve employee productivity when dealing with paperwork. Which of the following
    11·1 answer
  • Global address list characteristics
    11·1 answer
  • You are given the following design parameters, fill in the table: All memory addresses are 32-bit long; A 64Kbyte (2^16 byte) ca
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!