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VARVARA [1.3K]
3 years ago
10

Is 7(w)=(7×2)w commutative property or associative property?

Mathematics
2 answers:
Harrizon [31]3 years ago
7 0

Answer:

Neither

Step-by-step explanation:

You can't just add a extra 2 from nowhere

Umnica [9.8K]3 years ago
6 0
I don't think those two expressions would even be equal unless w = 0. You can't just add in a 2 from nowhere.
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Eli had $10 but he lost some of it. He mom doubled the money he had left. Eli wrote the expression 2(10-k) how much money he has
bezimeni [28]

Answer:

Step-by-step explanation:

According to the first expression:

2(10-k): where,

2:shows the double amount of money which ELI has

10:shows the amount of money which ELI had at the starting.

k:shows the amount of money which is lost.

10-k:shows the amount of money which ELI has after losing some amount.

According to the second expression:

20-2k where,

20:shows the twice of initial amount.

k: is the amount of money which is lost

2k:s hows the twice of amount which is lost

20-2k: shows the amount of money which is left with ELI after his mom gave him some money....

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3 years ago
The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school district
Bas_tet [7]

Answer:

A. Because the sample size is very large.

Step-by-step explanation:

The sample is quite large, so the t test is safe. With a sample size of at least 100, this test is going to be safe.

So the correct answer is:

A. Because the sample size is very large.

4 0
3 years ago
Andrew rode his bike at a constant speed.He rode 1mile in 5 minutes.
Rudiy27

Answer:

3

Step-by-step explanation

The answer is three because if you did the tree method you will have the same exact answer

3 0
2 years ago
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7. Jen has a collection of 45 corn husk dolls that she wants to arrange in equal groups. Write a fact family that shows how Jen
Rainbow [258]

Answer:

9 × 5

5 × 9

3 × 15

15 × 3

1 × 45

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Step-by-step explanation:

45 corn husk dolls can be arranged in equal groups

Number of husk by number of group

9 × 5

5 × 9

3 × 15

15 × 3

1 × 45

45 × 1

Facts family that shows how Jen could arrange her corn husk dolls is shown above

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If tan a=1/7 and tan b=1/3, prove that <br> cos 2a =sin 4b
koban [17]
Solve is in the pic.

With Geometry..



GoodLuck:)

4 0
3 years ago
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