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yKpoI14uk [10]
3 years ago
14

Change 4/5 to a decimal ​

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
7 0

Answer:

0.8 because 4 divides by 5 is 0.8

ser-zykov [4K]3 years ago
5 0

Answer:

here we need to devide

4÷5=0.8

so

4/5=0.8

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The answer is: 12.8 F

The solution: -10.6+14.2+11-1.8
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2 years ago
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How can estimating the quotient help you check that your answer to a division problem is reasonable?​
neonofarm [45]

Explanation:

If your actual answer is very far from your estimate, you probably made a mistake somewhere.

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<em>Additional comment</em>

50 years ago, when a slide rule was the only available calculation tool, making an estimate of the result was a required part of doing the calculation. Not only were the first one or two significant digits needed, but also the power of 10 that multiplied them. Use of a slide rule required the order of magnitude be computed separately (by hand) from the significant digits of the result.

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You may also find it useful to estimate the error in your estimate. That is, you may want to know the approximate answer to 2 (or more) significant digits in order to gain confidence that your calculation is correct.

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3 years ago
If the inspection division of a county weights and measures department wants to estimate the mean amount of soft-drink fill in 2
nikklg [1K]

Answer:

n=97

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

X \sim N(\mu, \sigma=0.01)

We know that the margin of error for a confidence interval is given by:

Me=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}   (1)

The next step would be find the value of \z_{\alpha/2}, \alpha=1-0.95=.05 and \alpha/2=0.025

Using the normal standard table, excel or a calculator we see that:

z_{\alpha/2}=1.96

If we solve for n from formula (1) we got:

\sqrt{n}=\frac{z_{\alpha/2} \sigma}{Me}

n=(\frac{z_{\alpha/2} \sigma}{Me})^2

And we have everything to replace into the formula:

n=(\frac{1.96(0.05)}{0.01})^2 =96.04

And if we round up the answer we see that the value of n to ensure the margin of error required \pm=0.01 Liters is n=97.

5 0
4 years ago
The length of the rectangular prism shown below is three times the width. The height and the width are the same. If the volume o
Liono4ka [1.6K]

Answer: the length of the prism is 9cm

Step-by-step explanation:

The formula for determining the volume of a rectangular prism is expressed as

Volume = length × height × width

Volume = LWH

The length of the rectangular prism is three times the width.. It means that

L = 3W

The height and the width are the same. This means that

H = W

Therefore,

Volume = 3W × × W × W = 3W³

If the volume of the prism is 81 cubic centimeters, it means that

81 = 3W³

Dividing through by 3, it becomes

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W = 3

Therefore, the the length of the prism would be

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L = 9 cm

8 0
3 years ago
Which expression represents the sum of (2x - 5y) and (x + y)
Hatshy [7]

Answer:

-10y

Step-by-step explanation:

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4 years ago
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