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3 years ago

What possible restrictions exist on domains and ranges of arithmetic sequences?

Mathematics

2 answers:

Kay [80]3 years ago

6 0

You cannot divide by zero and you can not have negative square roots

kykrilka [37]3 years ago

6 0

There cannot be multiple domains in domain and range sequence.
1 2
2 4
3 6
3 8
The equation I wrote is impossible since the domain was written twice. However you must remember the range can be repeated.

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If electricity power failures occur according to a Poisson distribution with an average of 3 failures every twenty weeks, calcul

Wittaler [7]

Answer:

0.9898 = 98.98% probability that there will not be more than one failure during a particular week.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

3 failures every twenty weeks

This means that for 1 week, $\mu = \frac{3}{20} = 0.15$

Calculate the probability that there will not be more than one failure during a particular week.

Probability of at most one failure, so:

$P(X \leq 1) = P(X = 0) + P(X = 1)$

Then

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-0.15}*0.15^{0}}{(0)!} = 0.8607$

$P(X = 1) = \frac{e^{-0.15}*0.15^{1}}{(1)!} = 0.1291$

Then

$P(X \leq 1) = P(X = 0) + P(X = 1) = 0.8607 + 0.1291 = 0.9898$

0.9898 = 98.98% probability that there will not be more than one failure during a particular week.

6 0

3 years ago

Tyler is mowing sand from his driveway to the backyard. The wheelbarrow weighs 30 kilograms when it is full of sand. When it is

Stells [14]

Tyler moved 180 kilograms
30-12=18 so 18×2=36 36×5=180

3 0

3 years ago

Find the value of x. help with geometry pls

Ivan

Answer:

Find the value of x:-

To find Y, use Pythagorean theorem:- $c^{2} =a^{2} +b^{2}$

$(2.1)^{2} =y^{2} +(1.4)^{2}$

$2.1^{2}=4.41$

$1.4^{2} =1.96$

$4.41=y^{2} +1.96$

subtract 1.96 from both sides

$2.45=y^{2}$

$y=1.5652$

Now, to find x:-

$x=y+y$

$= 1.5632+1.5652$

$x=3.1 \: ft$

<u>~OAmalOHopeO</u>

6 0

3 years ago

The _______ is the distance around a circle.

AnnyKZ [126]

The circumference is the correct.

It can be found using the formula,

$circumference = 2 \pi \: r$

3 0

3 years ago

Read 2 more answers

Explain how connecting digits to the right of the decimal point helps you multiply decimals.

Alex787 [66]

answer:

the decimal point shifts to the right to represent each multiplication by 10

Step-by-step explanation:

an example is 1.23*10

would give you 12.3 and if you multiply it by 100 it would give you 123

5 0

4 years ago