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pav-90 [236]
2 years ago
14

Question 7 of 10

Mathematics
2 answers:
dexar [7]2 years ago
7 0
I think it’s c hope it helps.
Lapatulllka [165]2 years ago
5 0

I believe it's graph C! I hope it will help you...

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In the context of data models, relationships among records in a hierarchical model are called _____.
Lelechka [254]

In the context of data models, relationships among records in a hierarchical model are called Branches. This is further explained below.

<h3>What are data models,?</h3>

Generally, The act of generating a visual representation of either a whole information system or portions of it in order to express the linkages between different data points and structures is known as data modeling.

In conclusion, When discussing data models, the connections between different records in a hierarchical structure are referred to as "Branches."

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6 0
1 year ago
Find the solution for the system of linear equations by substitution: 2x - y = 3 y − x = 1
Leviafan [203]

The solution for the system of linear equations 2x- y = 3 and y - x = 1 are x = 4 and y = 5

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change, slope or gradient

<h3>How to determine the solution to the system?</h3>

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

2x- y = 3

y - x = 1

Make y the subject in the second equation, by adding x to both sides of the equation

y - x + x = x + 1

This gives

y = x + 1

Substitute y = x + 1 in 2x- y = 3

2x- x - 1 = 3

Evaluate the like terms

x = 4

Substitute x = 4 in y = x + 1

y = 4 + 1

Evaluate

y = 5

Hence, the solution for the system of linear equations 2x- y = 3 and y - x = 1 are x = 4 and y = 5

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7 0
1 year ago
What are the factors of 2a³ + a² + 2a + 1?
morpeh [17]

Answer:

The answer is (a²+1)(2a+1)

4 0
2 years ago
PLEASEEE HELP -7a + 2b
Y_Kistochka [10]

Answer:

There are no like terms.

so its -7a+2b

Step-by-step explanation:

5 0
2 years ago
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jaxon earned $90 at his job when he worked for 9 hours . what was his hourly pay rate in dollars per hour ?
user100 [1]

Answer:

$10 dollars

Step-by-step explanation:

10x9=90

3 0
3 years ago
Read 2 more answers
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