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Pavlova-9 [17]
3 years ago
10

HELPPP MEEEEEEEEEEEEEEEEEEEEEEE

Mathematics
1 answer:
vekshin13 years ago
8 0
The third one hope that helps
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Write 3 additions 3 multiplications 2 division equato that equals the number 42830
alex41 [277]

Answer:

28,550.33333

Step-by-step explanation:

28,550.33333 + 3 = 28,553.33333

28,553.33333 x 3 = 85,659.99999

85,659.99999 ÷ 2 = 42830

6 0
3 years ago
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
What is the x value such that y= 15-3x and y=0?
enot [183]

Answer:

5

Step-by-step explanation:

y = 15 - 3x

0 = 15 - 3x

15 - 0 = 3x

x = 5

7 0
3 years ago
Read 2 more answers
Can somebody help me alive this?
Sveta_85 [38]

Answer:6/4

Step-by-step explanation:

7 0
3 years ago
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for 9x + 25= 88, deena wrote the situation "i bought some shirts at the store for 9$ each and received a 25$ discount. my total
MrRissso [65]
Deena has included the discount on the wrong side of the equation.
3 0
3 years ago
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