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3 years ago

Expand the following: c) 4(2x +1)

Mathematics

2 answers:

murzikaleks [220]3 years ago

6 0

Answer:

= 4(2x +1)

= 4× 2x + 4×1

= 8x +4

Mashutka [201]3 years ago

6 0

Answer:

4*(2*x+1)

Step-by-step explanation:

Simplified we would write it as,

8x + 4, but we want to expand, so we would write out each operation being performed.

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In preparation for an earnings report, a large retailer wants to estimate p= the proportion of annual sales

mr Goodwill [35]

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<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

In this problem, we have a 95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so the critical value is z = 1.96.

The sample size and the estimate are given by:

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Hence:

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More can be learned about the z-distribution at brainly.com/question/25890103

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2 years ago

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Step-by-step explanation:

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To the nearest hundredth you check the thousandths value and round off

In this case; 0.0294117647 = 0.03 pounds

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Division:brainly.com/question/13063965

Keyword : pound, average, hundredth

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