Answer:
B
Explanation:
In an ERD, the Crow Foot Notation Symbols are used with cardinality.
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Venn diagrams are used to depict set intersections (denoted by an upside-down letter U)......
Answer:
The restaurant chain system consist of restaurant id, name, zipcode, manager id, menu list.
Manager; manager id, name, phone no, and store.
Menu; menu id, type, items and description.
Items; item id, price and description.
Explanation:
Please look at the attachment for the E. R diagram.
The line of code required to assign a value of 50.00 to a variable of double data type in C++ can be written thus :
- double average_student_grade = 50.00;
The declaration follows the format :
- Data type
- Variable name
- Value
The data type which is first stated, the double data type are floating point (have decimals) numbers which have 64 bit precison(a precison of 15 decimal digits) as opposed to floats which have 32 bit precison (a precison of 7 decimal digits).
The variable name is the name to hold the value of average grade. This name depends on the preference of the programmer. However. It is advisable that variable names are relatable.
Therefore, variable declaration in C++ may follow the format data type then variable name then value.
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