1) mv data1 testdata/
2) mv data1 ../
3) ls letters
These are the *nix commands. You can find out more by looking at their man pages. You can get more info about the man subsystem by running: man man
Answer:
Case-based reasoning.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.
Case-based reasoning is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it. It is typically based on cognitive science and artificial intelligence.
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
The value of result of the code segment is executed is known to be 4.
<h3>Why is the value of the code segment so?</h3>
When the result of is not executed because the condition is said to be false and also when there is a false condition is, the else statement will be said to be true
Therefore, result = result + 2; -> result is brought up by 2 to bring about 4 and as such, the value of result of the code segment is executed is known to be 4.
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Biotechnology
Food Products and Processing Systems.
Further explanation
Career clusters help prepare learners with knowledge that they need to use towards achieving their career goals. One such career cluster is the Agriculture, Food, and Natural Resources career cluster which is divided into seven pathways. They include:
- Food Products and Processing Systems.
- Biotechnology Systems
- Agribusiness Systems
- Plant Systems
- Animal Science
- Environmental Service Systems
- Natural Resource Systems
This brings us to our answers above. Those working in the Food Products and Processing Systems pathway are responsible in discovering new food sources and coming up with ways to process and store food set out by industry regulation. On the other hand, biotechnology systems deal with techniques that use science to solve problems concerning living organisms and anyone thinking about pursuing this pathway ought to demonstrate competence in the application of biotech in the context of Agriculture, Food, and Natural Resources.
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