Which statement best describes the areas and perimeters of the figures below?

Mathematics

1 answer:

neonofarm [45]3 years ago

6 0

Answer:

They have different areas and different perimeters

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Which inverse operation would be used to verify the following equation?

DochEvi [55]

You would bring the division over to to other side. When we switch it to the other side, it turns into a multiplication (the opposite of division). So we go from:

102 / 3 = 34
to
102 = 34 * 3

Which is C for your multiple choice! :)

7 0

3 years ago

Read 2 more answers

Which expression should you simplify to find the 90% confidence interval,

bogdanovich [222]

Answer:

$0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.2870.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613$

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 $\alpha/2 =0.025$ .