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3 years ago

For each entity, select the attribute that could be the unique identifier of each entity.

Computers and Technology

1 answer:

Alika [10]3 years ago

3 0

Answer:

"student ID, number and title" is the correct answer for the above question.

Explanation:

The primary key is used to read the data of a table. It can not be duplicated or null for any records.
The "student ID" is used to identify the data of the "student" entity. It is because the "student ID" can not be duplicated or null for any records. It is because every student has a unique "student ID".
The "number" is used to identify the data of the "Locker" entity. It is because the "number" can not be null or duplicate for any records. It is because every locker has a unique "number".
The "title" is used to identify the data of the "Movie" entity. It is because the "title" can not be Null or duplicate for any records. It is because every movie has a unique "title".

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COST_PER_500MI = 1.1
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Based on the information given in the question, we presume the cost per 500 miles is $1.10 per pound ($2.20 / 2 pound).

Create a variable COST_PER_500MI to hold the value of cost per 500 miles (Line 1). Next, prompt user input the weight and assign it to variable weight (Line 3). Calculate the shipping charge and display it using print function (Line 4-5).

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