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polet [3.4K]
4 years ago
11

What is tuple and attribute of a relation​

Computers and Technology
1 answer:
Lorico [155]4 years ago
5 0

Answer:

An attribute value is an attribute name paired with an element of that attribute's domain, and a tuple is a set of attribute values in which no two distinct elements have the same name. Thus, in some accounts, a tuple is described as a function, mapping names to values.

Explanation:

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3 Points
tino4ka555 [31]

Answer:

its B the person in the comments were right

Explanation:

took an edge test

6 0
3 years ago
A lever has an effort arm that is 8 meters long and the residence (load) arm that is 1.5 meters long, how much effort is needed
andrew11 [14]

Answer:

1066.67 N

Explanation:

Given that two measurements of the arm and an input weight. To answer this problem,we need to balance the forces and use the lengths of the arms. 

Force × effort of arm distance= input weight × load distance

200 N * 8 m = x * 1.5 m

1600 = 1.5x

x = 1600/1.5

x = 1066.666 N

it takes 1066.67 N to lift the input weight

4 0
3 years ago
22. A<br> allows one computer to input data into another computer.
Katen [24]

Answer:

input device

Explanation:

any hardware device that allows users to enter programs, data, and commands into a computer system

7 0
3 years ago
Use the svd() function in matlab to compute a, the rank-1 approximation of a. clearly state what a, is, rounded to 4 decimal pla
PolarNik [594]

Using the knowledge in computational language in C code it is possible to write a code that organizes and calculates the value of the matrix of A*A and that is in up to 4 decimal places.

<h3>Writing the code in C is possible:</h3>

<em>A=[1 2 2;3 4 5;6 7 8];</em>

<em>[u ,s ,v] = svd(A);</em>

<em>k = 1;</em>

<em>A1 = u(:,1:k)*s(1:k,1:k)*v(:,1:k)'; %'</em>

<em>RMSE = rms(sqrt(mean((A - A1).^2)))</em>

See more about C code at brainly.com/question/17544466

#SPJ1

3 0
2 years ago
US-CERT is a set of moderated mailing lists full of detailed, full-disclosure discussions and announcements about computer secur
n200080 [17]

Answer:

False

Explanation:

BugTraq is a high volume, full disclosure mailing list for the detailed discussion and announcement of computer security vulnerabilities, not US-CERT

3 0
3 years ago
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