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3 years ago

Find the first four terms of the infinite sequence defined explicitly by the following rule.

1 answer:

8 0

The only thing that you should do is to put 1, 2, 3, and 4 instead of the n and then you will get the first four terms!

f(1) = 4(1) - 2 = 2
f(2) = 4(2) - 2 = 6
f(3) = 4(3) - 2 = 10
f(4) = 4(4) - 2 = 14

Have a great day!

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In a paint factory, an old conveyer line has filled 50 barrels of paint, and is filling more at a rate of 2 barrels per minute.

bezimeni [28]

Answer:

60 barrels

Step-by-step explanation:

y = # of barrels; x = minutes

worker: y = 12x

old line: y = 2x + 50

12x = 2x + 50

10x = 50

x = 5

y = 12(5) = 60

y = 2(5) + 50 = 60

60 barrels

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3 years ago

Select Repeating or Nonrepeating to correctly classify each decimal. Repeating Nonrepeating 7.777777... 6.213 KON 5.1152535 4.04

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Answer:

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Step-by-step explanation:

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3 years ago

ccording to the U.S. National Weather Service, at any given moment of any day, approximately 1000 thunderstorms are occurring wo

viva [34]

Answer:

The critical value of z for 99% confidence interval is 2.5760.

The 99% confidence interval for population mean number of lightning strike is (7.83 mn, 8.37 mn).

Step-by-step explanation:

Let X = number of lightning strikes on each day.

A random sample of n = 23 days is selected to observe the number of lightning strikes on each day.

The random variable X has a sample mean of, $\bar x=8.1\ mn$ and the population standard deviation, $\sigma=0.51\ mn$ .

The (1 - α)% confidence interval for population mean μ is:

$CI=\bar x\pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$

Compute the critical value of z for 99% confidence interval is:

$z_{\alpha/2}=z_{0.01/2}=z_{0.005}=2.5760$

*Use a z-table.

The critical value of z for 99% confidence interval is 2.5760.

Compute the 99% confidence interval for population mean number of lightning strike as follows:

$CI=\bar x\pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}\\=8.1\pm2.5760\times\frac{0.51}{\sqrt{23}}\\=8.1\pm0.2738\\=(7.8262, 8.3738)\\\approx(7.83, 8.37)$

Thus, the 99% confidence interval for population mean number of lightning strike is (7.83 mn, 8.37 mn).

The 99% confidence interval for population mean number of lightning strike implies that the true mean number of lightning strikes lies in the interval (7.83 mn, 8.37 mn) with 0.99 probability.

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3 years ago

How many different triangles can be drawn with the angle measures 90 45 and 45

Yuri [45]

Infinitely many, but they will all be proportional to each other

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3 years ago

Round off to 837,858

Fed [463]

840,00 is a reasonable rounding

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