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Oksi-84 [34.3K]
3 years ago
10

Which statement shows the associative property of addition?

Mathematics
2 answers:
Bingel [31]3 years ago
8 0
<span>(u + 7) + 13 = u + (7 + 13) The associative property of addition says that you can add numbers regardless of how they're grouped and get the same result. So let's look at the options and see what makes sense. (u + 7) + 13 = u + (7 + 13) * This is showing the associative property like the definition states. So this is the correct choice. 21 + 2y = 2y + 21 * This is a demonstration of the commutative property of addition. So it's the wrong choice for this question. 3â‹…(5â‹…x)=(3â‹…5)â‹…x * This is showing the associative property of multiplication. So it's the wrong choice for this question. If m + 3 = 18, then 18 = m + 3. * This is a demonstration of the symmetric property of equality. So for this question, it's the wrong choice.</span>
wariber [46]3 years ago
6 0

Answer:

(u + 7) + 13 = u + (7 + 13)

Step-by-step explanation:

i took the test

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How do you find the AOS and vertex of a quadratic?
andreyandreev [35.5K]

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The standard form of a quadratic is y = ax^2 + bx + c.

  • In this equation, the formula for the axis of symmetry is x = \frac{-b}{2a}.
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3 0
3 years ago
A newsletter publisher believes that less than 25% of their readers own a Rolls Royce. For marketing purposes, a potential adver
nasty-shy [4]

Answer:

There is enough evidence at the 0.05 significance level that the percentage is less than 25%.

Step-by-step explanation:

<em>The question has no options. However, there are enough details to arrive at a conclusion.</em>

<em></em>

Required

What can we conclude about the claim of the publisher.

From the question, we understand that the null hypothesis is rejected.

In statistics, a hypothesis is rejected, if the level of significance is less than the required or determined value.

In this case, the determined value 25% and the level of significance is 0.05

<em>So, the conclusion on the claim is that there is enough evidence at the 0.05 significance level that the percentage is less than 25%.</em>

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Help!!!!!!!!!!!!!!!!!!!!!!
9966 [12]
I can't figure this one out but download Cymath it will help with this problem.
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