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3 years ago

What is the simplified answer to 5/2

Mathematics

1 answer:

Yanka [14]3 years ago

8 0

Maybe it the mixed number form. 2 1/2?

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twenty students went to a fast food restaurant everyone ordered a hamburger and a drink hamburgers cost 3.25 each and drinks cos

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Answer:

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Step-by-step explanation:

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3 years ago

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A new car depreciates 11% per year. if the new car is worth 23,882 today how much will it worth in 4 years

Andrei [34K]

Answer:

Well..

Step-by-step explanation:

Do 23,882 by 11, then do the answer of that problem divided by 11 and so on

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3 years ago

The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the

larisa86 [58]

Answer:

The need to sample 76 days.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.005 = 0.995$ , so $z = 2.575$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

How many days do they need to sample

We need to sample n days.

n is found when M = 300.

We have that $\sigma = 1010$

$M = z*\frac{\sigma}{\sqrt{n}}$

$300 = 2.575*\frac{1010}{\sqrt{n}}$

$300\sqrt{n} = 2.575*1010$

$\sqrt{n} = \frac{2.575*1010}{300}$

$(\sqrt{n})^{2} = (\frac{2.575*1010}{300})^{2}$

$n = 75.1$

Rounding up

The need to sample 76 days.

3 0

3 years ago

owen found harry potter books for $12.38 each. he would like to buy one for each of his 4 friends. how much will he spend?

Liono4ka [1.6K]

Answer:

$49.52

Step-by-step explanation:

$12.38 x 4 = 49.52

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3 years ago

Plz help...................

Agata [3.3K]

I believe the answer would be d .

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3 years ago

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