Which algebraic expression is represented by the model?

Mathematics

1 answer:

DerKrebs [107]3 years ago

6 0

Answer:

3(2x+2) = 6x + 6

Step-by-step explanation:

Those are algebra tiles, so it is saying (if you read across the top) 2x +2 then if you read down you have 3 units, so the dot means 2x + 2 multiplied by 3

If you write it in algebraic terms it is 3(2x+2) so the answer when you distribute is 3 (2x) + 3(2) so 6x + 6, and if you count the number of red rectangles you have 6 of them, hence the 6x, and if you cound the units in gray you have 6 of them, hence the 6.

Algebra tiles are used to demonstrate algebra concepts

You might be interested in

Andrew estimated the weight of his dog to be 60 lb. The dog’s actual weight was 68 lb.

iragen [17]

Correct - wrong percentage
-------------------- = ---------------
wrong    100
68 - 60    x
--------- = ----
60 100
8   x
---- = ----
<span>60 100
</span>800    60x
----- = ----
60 60
13.3% = x

5 0

3 years ago

Data was collected on the number of pets and the height of a random group of students. Identify the correlation you would expect

Ipatiy [6.2K]

No correlation
A scatterplot is used to represent a correlation between two variables. There are two types of correlations: positive and negative. Variables that are positively correlated move in the same direction, while variables that are negatively correlated move in opposite directions.

4 0

3 years ago

Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your

Mila [183]

The critical value of r is mathematically given as r = +0.487, with no significant linear correlation. Option A.

<h3>What are the critical values of r?</h3>

Question Parameters

r = -0.868

n = 5

df = 5 - 2

df = 3

$\alpha / 2 =0.025$

Critical values $r= \pm 0.878$

Generally, there exists no linear correlation between the Critical values

as r=0.878

In conclusion, Critical values: r = +0.487, no significant linear correlation