Answer: (D) Database design follows the twelve principles proffered by Dr. Edgar F. Codd
Explanation:
The relational database is basically based on the relational model of the data which is proposed by the Dr Edger F. codd and he mainly introduced the twelve basics principle of the database designing in the database system. He also contributed various valuable principle in the computer science.
The twelve principle are:
- The first rule of the relational database is the information rule as it represented all data or information
- Independence of the integrity
- Viewing various updating rule
- Logically treatment of various NULL value
- Independence of the physical database
- Distribution in-dependency
- Various delete, insert and update rules
- The overall logical description of the database are basically stored in the database directory
- There is no subversion rule
- There is guarantee accessing rule
- Proper rule for data language
- The relational database level actions
Answer:
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim foodCharge, tax, tip, totalCharge As Double
foodCharge = Val(TextBox1.Text)
tax = 0.07 * foodCharge
tip = 0.15 * 100
totalCharge = foodCharge + tax + tip
Label5.Text = tax
Label6.Text = tip
Label7.Text = totalCharge
End Sub
End Class
Explanation:
- This is implemented using Visual Basic programming language
- Firstly we declared all the variables using DIM key word
- Then the calculation for each variable is done according to the specification of the question
- On the form (See attached Image) the controls for receiving the user input is created as well as the controls for the output.
- See the attached sample run below:
Well it determends if there wearing them for sports or for fighting
if it is for sports then they are protected from balls and such
if it is for fighting then they are protected from bullets arrows and anything else you could think of
they are used to shield your face
Answer:
D
Explanation:
Cause You Have To Decode It To Get To The Memory In The First Place
Morning and afternoon commute times are obvious blocks of time that you can assume are used for listening to podcasts, but the answer will obviously vary widely based on individual habits and schedules.
Hope this helps
