45?45 which symbols correctly relates the two numbers below

Mathematics

1 answer:

kodGreya [7K]3 years ago

3 0

The equal symbol does

=

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Which to numbers add up to 17 and multiply to 75

Oliga [24]

There are no 'real' numbers that can do the job.

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8.5 + 1.66i
and
8.5 - 1.66i.

These are called 'complex' numbers.
The ' i ' is √-1 .

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Suppose a, b, and c are all negative numbers. How do you find the distance between the points (a,b) and (a,c)?

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Add the (a,b) and then add (a,c). Find out the number between these two after being added

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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 $\alpha/2 =0.025$ .