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Eva8 [605]
3 years ago
6

Create a function printInfo(some_dict) that given a dictionary whose values are all lists, prints the name of each key along wit

h the size of its list, and then prints the associated values within each key's list.
Computers and Technology
1 answer:
aleksandrvk [35]3 years ago
7 0

Answer:

def printInfo(some_dict):

   print(len(some_dict['locations']), "LOCATIONS")

   for location in some_dict['locations']:

       print(location)

   print()

   print(len(some_dict['instructors']), "INSTRUCTORS")

   for location in some_dict['instructors']:

       print(location)

seattle = {

   'locations': ['San Jose', 'Seattle', 'Dallas', 'Chicago', 'Tulsa', 'DC', 'Burbank'],

   'instructors': ['Michael', 'Amy', 'Eduardo', 'Josh', 'Graham', 'Patrick', 'Minh', 'Devon']

}

printInfo(seattle)

Explanation:

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What were the technological innovations that allowed for the rapid expansion of the railroads?
liraira [26]

Answer:

There are different phases of railroad expansion with the innovations in technology.

Explanation:

Few of the technological innovations are described below that leads in railroad expansion more rapid.

1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.

2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.

3. Bullet train technology has been introduced, that makes the railway trains more faster.

4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.

5 0
3 years ago
DMA controllers ____.A) do not utilize an additional, special purpose, processorB) are a nonstandard component in PCs of todayC)
otez555 [7]

Answer:

D) can access main memory at the same time as the main CPU

Explanation:

DMA is short for Direct Memory Access, these controllers allow the device to transfer data directly to and from the memory modules without interfering with CPU processes. Therefore it can access main memory at the same time as the main CPU. Thus freeing up CPU processing power for other tasks while also retrieving the data necessary.

8 0
3 years ago
What is technology? Technology advantages and disadvantages
Alisiya [41]

Explanation:

Technology is a method or skill of utilizing scientific information to reach the goals that include computers, machines and also different techniques.

Advantage of using technology

  • Information can be quickly stored and shared very easily.
  • Technology is used in all companies and businesses to achieve the tasks in a short period with efficiency,
  • Technology has reduces the human errors that have helped to reduce the work stress.

Disadvantages of using technology

  • Corruption and terrorism have increased due to advancements in technology.
  • with the help of technology, digital and data manipulation is done.
  • Too much connected or dependent on technology can cause several psychological problems such as narcissism,depressions, distraction.
  • Using too much of technology can affect physical health such as vision problems, hearing problems, neck strain.

3 0
3 years ago
Researchers conducted a 'natural experiment' to examine the effects of on-site food services on weight gain among first-year col
anygoal [31]

Answer:

On-site food services is the INDEPENDENT variable and the weight gain is the DEPENDENT variable

Explanation:

Variables can be dependent or independent. An independent variable is the one used by the researcher to test its degree of influence on the dependent variable. The dependent variable, as the name implies, relies on changes in the independent variable to effect its own changes.

In the question, it is obvious that weight gain among the first year students is dependent on on-site food services

7 0
3 years ago
Write a computer program that determines how many grades are between 0 and 19.
True [87]

Answer:

public class nnn {

   public static void main(String[] args) {

       int [] examScores = {31, 70, 92, 5, 47, 88, 81, 73, 51, 76, 80, 90, 55, 23, 43,98,36,87,22,61, 19,69,26,82,89,99, 71,59,49,64};

       int zeroTo19 = 0;

       int nineteenTo39 = 0;

       int fortyTo59 = 0;

       int sixtyTo79 = 0;

       int eightyTo100 = 0;

       for(int i =0; i<examScores.length; i++){

           if(examScores[i]<=19){

               zeroTo19++;

           }

           else if(examScores[i]>19&&examScores[i]<=39){

               nineteenTo39++;

           }

           else if(examScores[i]>39&&examScores[i]<=59){

               fortyTo59++;

           }

           else if(examScores[i]>59&&examScores[i]<=79){

               sixtyTo79++;

           }

           else {

               eightyTo100++;

           }

       }

       System.out.println("0 - 19 is "+zeroTo19);

       System.out.println("20 - 39 is "+nineteenTo39);

       System.out.println("40 - 59 is "+fortyTo59);

       System.out.println("60 - 79 is "+sixtyTo79);

       System.out.println("80 - 100 is "+eightyTo100);

   }

}

Explanation:

  • This has been solved with Java
  • Create an array of the exam scores
  • Create new variables for each of the score range
  • Use multiple if statements as u loop through the array to determine the range of scores
  • Finally outside the loop print them variables out
7 0
3 years ago
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