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wariber [46]
4 years ago
13

Solving systems of three equations

Mathematics
1 answer:
seropon [69]4 years ago
8 0
Add like terms..........
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Suppose calls are arriving at a telephone exchange at an average rate of one per second, according to a Poisson arrival process.
antoniya [11.8K]

Answer:

Explanation has been given below

Step-by-step explanation:                    

a) inter arrival times are exponentially distributed with mean 1/n , where n = rate = 1/sec.                                                                              

  probability distribution function is F(t)=n*exp(-n*t).  

reference to any kth packet and the (k-1)th packet

the answer is = integration of F(t).dt with limits 0 to 2 = 1 - exp(-2*n) = 1 - exp(-2)  

b)  t=5 , P(q) = exp(-5)*(5)^q/factorial(q)  

probability of fourth call within t=5 seconds is =  

that is P(4)   P(5)   ......  = 1 - ( P(0)   P(1)   P(2)   P(3) ) ;  put the values and get the answer.  

c) number of calls/rate =  4/n = 4 seconds

5 0
3 years ago
Find the area of the circle. Round to the nearest tenth.
Lerok [7]

Answer:

283.5

Step-by-step explanation:

A=πr^2

A=π(9.5^2)

A=π(90.25)

π x 90.25=283.5 (rounded to the nearest tenth)

4 0
3 years ago
Which of these is a simplified form of the expression –b – 2(2b + 5)?
monitta

Answer:

c

Step-by-step explanation:

-b -4b - 10

-5b - 10

hence c is the answer

3 0
2 years ago
Read 2 more answers
GIVING BRAINLIEST ONCE AGAIN
Andru [333]

Answer:

45

Step-by-step explanation:

divide 25 by 5 to see how they got that, which is 5. then multiply 9 by 5 bc you have to do the same thing, which is 45.

3 0
3 years ago
Read 2 more answers
Student A spent $9 on a bottle of school glue, a package of colored pencils, and a pencil pouch. Student B
tino4ka555 [31]

Answer:

Step-by-step explanation:

...

8 0
3 years ago
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