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Elena-2011 [213]
3 years ago
8

All of the following are methods of communication

Computers and Technology
2 answers:
ladessa [460]3 years ago
8 0

Answer:

Extermal hard drive

Explanation:

you can only get coding out of that

NNADVOKAT [17]3 years ago
3 0

Answer:

Extremal hard drive is not form of communication.

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A string variables??? I'm not sure does this have any multiple choice 
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How many generations of computer languages have there been since the middle of the 20th century?
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Read 2 more answers
Ask the user for a total food bill and then find the new total after 6% tax and a tip of the users choice (15, 18, 20%) in pytho
chubhunter [2.5K]

Answer:

#here is code in python.

# read the food bill

tot_bill=float(input("Please enter the food bill:"))

# tax on food

tax=0.06

#choice for tip by user

choice=int(input("enter your choice for tip:(1 for 15%, 2 for 18% and 3 for 20% :)"))

// calculate the total food bill

if choice==1:

   tot_food_bill=tot_bill+tot_bill*tax+tot_bill*(.15)

elif choice==2:

   tot_food_bill=tot_bill+tot_bill*tax+tot_bill*(.18)

elif choice==3:

   tot_food_bill=tot_bill+tot_bill*tax+tot_bill*(.2)

else:

   print("invalid choice:")

#print the total food bill

print("total food bill is ",tot_food_bill)    

Explanation:

Read the food bill from user and assign it to variable "tot_bill".Initialize the tax=0.06 (i.e. 6%) on the bill.Then ask user to give his choice for tip. if the choice is 1 then tip will be 15%, if 2 then 18% and if choice is 3 Then tip will be 20% of the bill.Calculate the total food bill and assign it to variable "tot_food_bill".

Output:

Please enter the food bill:100                                                                                                                                

enter your choice for tip:(1 for 15%, 2 for 18% and 3 for 20% :)2                                                                                            

total food bill is  124.0

3 0
3 years ago
Why are duplicate tuples not allowed in a relation?
velikii [3]

Answer:

Explanation:

Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.

Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.

4 0
3 years ago
Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binar
MAXImum [283]

Answer:

thats what i was about to ask. im not sure

Explanation:

sorry   '-'

3 0
3 years ago
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