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3 years ago

What is pi to the 84,597 power divided by 46

Mathematics

1 answer:

eduard3 years ago

6 0

For pi they usually use 3.14 for pi so do 84,597 times 3.14 then divided by 46 is <span>5774.66478261</span>

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252 you multiply the 42 and 12 then devoid even by 2

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3 years ago

write an equation in point slope form for the line that passes through each point with the given slope (-7,2),m=6

frez [133]

Point-slope form for a line:
We need a point (x₀,y₀) and the slope (m).
y-y₀=m(x-x₀=

We have the point (-7,2) and the slope (m=6); so:
y-2=6(x+7)

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3 years ago

What is an equation of the line that passes through the point (-2,-8) and has the slope of 3

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Answer:

y = 3x - 2

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3 years ago

The z- score for a mark of 56 in a test with a mean of 60 and standard deviation of 8 is

Alenkasestr [34]

Answer:

z = - .5

Step-by-step explanation:

z = (x - μ)/ σ

z = 56 - 60/8 = -.5

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3 years ago

The operations manager at a compact fluorescent light bulb (CFL) factory needs to estimate the mean life of a large shipment of

aliya0001 [1]

Answer:

The 95% confidence interval estimate for the population mean life of compact fluorescent light bulbs in this shipment is between 7,255 hours and 7,745 hours.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.95$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96*\frac{1000}{\sqrt{64}} = 245$

The lower end of the interval is the sample mean subtracted by M. So it is 7500 - 245 = 7255 hours.

The upper end of the interval is the sample mean added to M. So it is 7500 + 245 = 7745 hours.

The 95% confidence interval estimate for the population mean life of compact fluorescent light bulbs in this shipment is between 7,255 hours and 7,745 hours.

7 0

3 years ago