Hello <span>Abigailguzman6347</span><span>
</span>Answer: If you use a surrogate key, you must ensure that the candidate key of the entity in question performs properly through the use of "unique index" and "not null" constraints.
Hope This Helps!
-Chris

Convert
0.625 to binary

Translate 0.625 into a fraction. We all know that 0.5 is ½. We know that the remainder, 0.125, is ⅛. Add them together, and you get ½ + ⅛ = ⅝.
Now, in binary, the positions to the right of the point are , which is ½, ¼, and ⅛ respectively.
⅝ is 5 × ⅛. 5 in binary is 101. So, ⅝ is
= 0.101
Answer:
c. selection list.
Explanation:
A selection list is created using the select and option elements that present users with a group of predefined possible values for the data field.
In Computer programming, the selection list is used to avail the end users with the ability to engage in an operation such as a predefined possible values for the data field.