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vivado [14]
3 years ago
10

Expand 3m (m +1) ???????????????

Mathematics
2 answers:
Aleks [24]3 years ago
7 0

Answer:

So you solve it .... 3m^2+ 3m

Step-by-step explanation:

SCORPION-xisa [38]3 years ago
3 0

Answer:

3m^2+3

Step-by-step explanation:

Step 1:  First you have your equation or something.

3m (m+1)

Step 2: You multiply the parenthesis with the number.

Step 3: Then 3m to the parenthesis if you have 3m and m will convert to m^2.

Step 4: Your answer would be 3m^2+3

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Just multiple

This is the answer to this question

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Answer:

z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67  

Step-by-step explanation:

1) Data given and notation

n=100 represent the random sample taken

X=18 represent the ounce cups of coffee that were underfilled

\hat p=\frac{18}{100}=0.18 estimated proportion of ounce cups of coffee that were underfilled

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\alpha represent the significance level  

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2) Concepts and formulas to use  

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Alternative hypothesis:p > 0.1  

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The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67  

4) Statistical decision  

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The significance level assumed for this case is \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a one right tailed test the p value would be:  

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So the p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance thetrue proportion is not significanlty higher than 0.1 or 10% .  

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Svet_ta [14]

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Answer:

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