Renting means you sign a contract or a lease to live their owning means you bought the house and pay mortgage <span />
Answer:
O =C3+10-E3
Explanation:
Only addition and subtraction :D
Unicode was invented to create a "universal text", or a language framework that any computer or device could understand.
Answer:
a) We know that atleast one or more author writes a book.
Symbol to indicate one or more is (B)
So the correct option is B
b) We know that zero to multiple books are written by any author.
Symbol to indicate zero or more is (A)
So the correct option is A
c) The fourth option is correct if we replace by many to many relationship and generate a new entity.
So the relationship betweem author and contract is one to many. So we know that there is atleast one author that represent in symbol d and books has atleast 0 that represent in symbol c.
So Fourth Option is correct d at blue side and c at red side.
d) There are two forirgn keys in table Contract one is from AuthorId and other is ISBN.
So correcct option is C
No, this website is not for study groups. It's more of a 'question and answer' website. There is no actual communication on one certain subject. Although I do know a few websites that have worked really well for me,where you can create and participate in study groups;
-studyblue
- studyhall
- getstudyroom
all of these are safe websites that are used by wide variety of students, therefore i'm sure you can find plenty of people interested in learning the same things as you!
