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3 years ago

Could you please check my answers to this layout user defined data types

Computers and Technology

1 answer:

amid [387]3 years ago

6 0

movieStars = ['Carrie Fisher', 'Harrison Ford'] is a list. Dictionaries have curly braces not brackets.

movieCost = 4.95 is a float

movieRatings = {5:'language', 3:'violence'} as I stated previously, dictionaries have curly braces and lists have brackets.

movieAwards = ('Oscar', 'Golden Globe', 'Director's Guild') is a tuple

movieID = 132 is an int. Integers are whole numbers with no quotation marks.

movie = 'Star Wars' is a string. Strings have quotes around them.

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(blank) is an expansion card that enables a computer to connect to a network:

laiz [17]

Answer:

Explanation:

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2 years ago

What is the code for this please?

elena55 [62]

What you mean code like a escape room I need more info

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3 years ago

Write c++ code that prints: usernum ... 2 1 blastoff! your code should contain a for loop. print a newline after each number and

nata0808 [166]

#include <iostream>
int main() { int usernum = 3;
for(int i = usernum; i >= 1; i--) { std::cout << i << "\n"; } std::cout << "blastoff!\n";
return 0;}
Works fine my dude:
./randombrainly 321blastoff!

3 0

4 years ago

Which of the following is the best definition of metatheatre?

grandymaker [24]

Answer:"Metatheatre" is a convenient name for the quality or force in a play which challenges theatre's claim to be simply realistic -- to be nothing but a mirror in which we view the actions and sufferings of characters like ourselves, suspending our disbelief in their reality.

Explanation:

7 0

3 years ago

Consider the following relation: CAR_SALE (Car#, Date_sold, Salesman#, Commision%, Discount_amt Assume that a car may be sold by

Nady [450]

Answer:

See explaination

Explanation:

The given relation is:

CAR_SALE(Car#, Date_sold, Salesperson#, Commission%, Discount_amt)

Primary key: {Car#,Salesperson#}

We will first check whether the relation is in 1NF.

A relation is said to be in the 1st Normal form(1NF) if all the columns in the relation have atomic values. In this case, the relation is in 1NF.

A relation is said to be in the second normal form(2NF) if it satisfies the condition that all non keys are completely dependent on the primary key and just a part of the primary key.

In the case of the CAR_SALE relation, the Commission% depends only on the Salesperson# and not on the combination of Car# and Salesperson#. This means that the given relation is not in 2NF. To satisfy 2NF, we make two relationships as given below:

SALE_DETAIL(Salesperson#, Commission%)

and CAR_SALE(Car#, Date_sold, Salesperson#, Discount_amt)

Now both the relations are in 2NF.

For a relation to be in 3NF, no non-key should be functionally dependent on another non key.

In the case of the CAR_SALE relation, it is specified that the Date_sold field determines the Discount_amt. Therefore the modified CAR_SALE is not in 3NF.

To satisfy 3NF, we seperate the non key and the dependent non key and create a different table.

Final Relations:

SALE_DETAIL(Salesperson#, Commission%)

Discount_Detail(Date_Sold, Discount_Amt)

CAR_SALE(Car#, Date_sold, Salesperson#)

7 0

3 years ago