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sashaice [31]
3 years ago
6

An iron bench was marked up 100% from an original cost of $95. If Hannah bought the iron bench and paid 10% sales tax, how much

in total did she pay?
Mathematics
1 answer:
UNO [17]3 years ago
8 0
100 hope me help sorry for me bad egulus
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Simplify the expression. <br><br> -1/2 + 1/6
sukhopar [10]
-1/2 = -3/6

-3/6 + 1/6 = -2/6

-2/6 = -1/3

-1/3 is your answer

hope this helps
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56 divided (-10)<br><br> What is the answer?
ElenaW [278]

Answer:

-5.6

Step-by-step explanation:

56/-10 = -5.6

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Dimensional analysis. An adult mosquito's lifespan is about 16 days. How many minutes is that?
masya89 [10]

Answer:

23,040 minutes

Step-by-step explanation:

16 days = 384 hours = 23,040 minutes

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Jlenok [28]

Answer:

-3*23

Step-by-step explanation:

6 0
3 years ago
Which expression should you simplify to find the 90% confidence interval,
Alex787 [66]

Answer:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287

0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

Step-by-step explanation:

The estimated proportion of interest is \hat p=0.45

We need to find a critical value for the confidence interval using the normla standard distributon. For this case we have 95% of confidence, then the significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025. And the critical value is:

z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the true population proportion is interest is given by this formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

Replacing the values provided we got:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287

0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

8 0
3 years ago
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