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2 years ago

14

It is recommended to use a Poisson process to model the number of failures in commercial water

1 answer:

OverLord2011 [107]2 years ago

7 0

A research paper recommends using Poisson process to model the number of failures in commercial water pipes The paper also gives estimates the failure rate in units of failures per 100 miles of pipe per day; for four different types of pipe and for many different years_ For example, for cast iron pipe in 2005, the authors' estimate is the failure rate is 0.0864 failures per 100 miles per day: Suppose a town had 2500 miles of cast iron pipe underground in 2005 What is the probability of at least two failures

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On a word processing test, Iko typed 694 words in 15 minutes. On that same test six days later, Iko typed 753 words in 15 minute

Misha Larkins [42]

Answer:

The improve in speed is 3.9334 words/min

Step-by-step explanation:

we will find speed at both occasions and then we can subtract them

First test:

total number of word =694

total time =15 min

we know that

speed = (total number of words)/( total time)

now, we can plug values

speed is

$=\frac{694}{15}$ word/min

$s_1=46.2666$ word/min

Second test:

total number of word =753

total time =15 min

we know that

speed = (total number of words)/( total time)

now, we can plug values

speed is

$=\frac{753}{15}$ word/min

$s_2=50.2$ word/min

So, improve in speed is

$=s_2-s_1$

$=50.2-46.2666$

$=3.9334$ word/min

7 0

2 years ago

I need help on 24 please

dusya [7]

Where's the table. you need it to answer the questions.

4 0

3 years ago

Please help me!!!!!!!!!!!

alex41 [277]

A is 4/9 B is 4/15 C is 8/5 D is 3/10

5 0

2 years ago

Simplify the expression. Show all of your work. 16 plus 4 cubed times 2 divided by 16

frozen [14]

Answer:

528

Step-by-step explanation:

Question: 16 + $4^{3}$ * 2 ÷ 16

Work:

$4^{3}$ = 64

2/16 = 0.125

64/0.125 = 512

512 + 16 = 528

4 0

2 years ago

Solve the following system of equations using Substitution: Submit your answer as an ordered pair. 2x−3y=32x-3y=32x−3y=3 x=y+2x=

exis [7]

9514 1404 393

Answer:

(3, 1)

Step-by-step explanation:

We assume you want the solution to the system ...

2x−3y=3
x=y+2

The second equation gives a nice expression for x, so we can use that in the first equation.

2(y+2) -3y = 3 . . . . substitute for x in the first equation

2y +4 -3y = 3 . . . . . eliminate parentheses

-y = -1 . . . . . . . . . . . collect terms, subtract 4

y = 1 . . . . . . . . . . . . multiply by -1

x = 1 +2 = 3 . . . . . . substitute for y in the second equation

The solution is (x, y) = (3, 1).

4 0

3 years ago