its on the upper left hand corner hope this helped
Answer:
3
Explanation:
ER model can be used and is based on three basic concepts: Entities, Attributes & Relationships.
An entity can be place, person, object, event or a concept, which stores data in the database.
Relationship is nothing but an association among two or more entities. A weak entity is a type of entity which doesn't have its key attribute.
Answer:
Explanation: Name your variables based on the terms of the subject area, so that the variable name clearly describes its purpose.
Answer:
b. There are three objects created of Student class and they each have their own memory locations. The GetDetails() function is invoked for only the stud object of the class Student.
Explanation:
When you look at the code, you will see three object of the Student class is created: newStud, stud, and, oldStud, having their own memory locations. Meaning, the value of the data member in Student class can be different for newStud and stud. Even though all the objects can access the GetDetails() function, only the stud object called the GetDetails() function, stud.GetDetails();
Answer:
c) put a $ in front of the letter and number that represents the cell position.
Explanation:
Dollar sign ($) is used to lock the formula in the cell. This is called absolute reference. In this type of referencing, A dollar sign is place in front of the letter and number to lock that cell. Whenever we copy that cell, the formula will be copied in other cell without changing its reference number.
As
Example 1
C1 = A1 + B1
if we copy this formula in C2 then it becomes
C2= A2 + B2
there both reference of A and B has been changed.
Example 2
If we put $ sign as
C1= $A$1 + $B$1
now of we copy C1 and into C2
C2= $A$1 + $B$1
There reference of cell is not changed.