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Mathematics

2 answers:

Naya [18.7K]3 years ago

6 0

Answer:

Well, it depends on their heights . If both figures have same height, then the one with greater surface area will have greater volume.

Step-by-step explanation:

liberstina [14]3 years ago

4 0

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Help me solve this:<br>5 hundreds x 10 = ________ hundreds= ______

Aneli [31]

5 hundreds x 10 = 50 hundreds = 5000
Now in the above solution we can see that the multiple of 5 hundreds with a 10 gives a result of 50 hundreds. If we want ot simplify it further then we can write
500 x 10 = 50 x 100 = 5000

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3 years ago

The local firehouse held a chili cook-off to raise money for charity. The firemen raised a total of $842.00, but $499.00 was spe

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2 years ago

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(b) how many measurements must be averaged to get a margin of error of ±0.0001 with 98% confidence? (round your answer up to the

goblinko [34]

Given that the scale readings of the laboratory scale is normally distributed with an unknown mean and a standard deviation of 0.0002 grams.

Part A:

If the weight is weighted 5 times and the mean weight is 10.0023 grams, the 98% confidence interval for μ, the true mean of the scale readings is given by:

$98\% \ C. \ I.=\bar{x}\pm z_{\alpha/2}\left(\frac{\sigma}{\sqrt{n}}\right) \\ \\ =10.0023\pm2.33\left(\frac{0.0002}{\sqrt{5}}\right) \\ \\ =10.0023\pm2.33(0.000089) \\ \\ =10.0023\pm0.00021 \\ \\ =(10.0023-0.00021, \ 10.0023+0.00021) \\ \\ =(10.0021, \ 10.0025)$

Thus, we are 98% confidence that the true mean of the scale readings is between 10.0021 and 10.0025.

Part B:

To get a margin of error of +/- 0.0001 with a 98% confidence, then

$\pm z_{\alpha/2}\left(\frac{\sigma}{\sqrt{n}}\right)=\pm0.0001 \\ \\ \Rightarrow2.33\left(\frac{0.0002}{\sqrt{n}}\right)=0.0001 \\ \\ \Rightarrow\left(\frac{0.0002}{\sqrt{n}}\right)= \frac{0.0001}{2.33} =0.0000429 \\ \\ \Rightarrow\sqrt{n}= \frac{0.0002}{0.0000429} =4.66 \\ \\ \Rightarrow n=4.66^2=21.7156\approx22$

Therefore, the number of <span>measurements that must be averaged to get a margin of error of ±0.0001 with 98% confidence is 22.</span>

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3 years ago

A school group rented a banquet room for $110. They also paid $15 for each person (p) at the banquet. The total bill was $1,460.

vodomira [7]

Answer:

The answer is 15p+110=1.460

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3 years ago

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find the sum of all the factor of 48 and the sum of all the factors of 64 . then find the different the difference between the t

Natasha_Volkova [10]

How did u get that answer

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3 years ago