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2 years ago

Step 1: 4 x minus x + 2 + 6 = 6 x + 16

1 answer:

8 0

The error from Jorge's arithmetic operation on the given algebraic expression is that he distributed it incorrectly.

<h3>What is an algebraic expression?</h3>

An algebraic expression is a mathematical equation that is made up of variables together with arithmetic operations.

From the given expression, we have:

4x - x + 2 + 6 = 6x + 16

Add similar elements together;

3x + 8 = 6x + 16

Using distributive property, subtract 8 from both sides:

3x + 8 - 8 = 6x + 16 - 8

3x = 6x + 8

Simplify

3x-6x = 8

-3x = 8

Divide both sides by -3

-3/-3x = -8/3

x = -8/3

So from Jorge's calculation, because he distributed incorrectly, we can conclude that could be his error.

Learn more about calculating algebraic expression here:
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3 years ago

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4 years ago

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3 years ago

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Hi!

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3 years ago

A marketing study conducts 60 significance tests about means and proportions for several groups. Of them, 3 tests are statistic

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Answer:

hello your question lacks the required options attached is a picture of the complete question

One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.

Step-by-step explanation:

What is misleading about this is the study's final report because this marketing study was carried out with a level of significance of 5% (0.05) which means that if we carry the same study with varying sample data we will mostly like arrive at a conclusion against our null conclusion 5% of the time and this is not good for the the study because it is a type 1 error and has to be eliminated and it cannot be eliminated totally .

hence One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.

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3 years ago

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