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3 years ago

Type the correct answer in the box. Spell all words correctly.

Computers and Technology

1 answer:

diamong [38]3 years ago

8 0

The answer is handouts.
A handout is a pamphlet with information on your presentation you can give to your audience

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Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent server

sattari [20]

Answer:

The smallest number of servers required is 3 servers

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Explanation:

Given

$Reliability = 99.98\%$

$Individual Servers = 95\%$

Required

Minimum number of servers needed

Let p represent the probability that a server is reliable and the probability that it wont be reliable be represented with q

Such that

$p = 95\%\\$

It should be noted that probabilities always add up to 1;

So,

$p + q = 1$ '

Subtract p from both sides

$p - p + q = 1 - p$

$q = 1 - p$

Substitute $p = 95\%\\$

$q = 1 - 95\%$

Convert % to fraction

$q = 1 - \frac{95}{100}$

Convert fraction to decimal

$q = 1 - 0.95$

$q = 0.05$

------------------------------------------------------------------------------------------------

<em>To get an expression for one server</em>

The probabilities of 1 servers having 99.98% reliability is as follows;

$p = 99.98\%$

Recall that probabilities always add up to 1;

So,

$p + q = 1$

Subtract q from both sides

$p + q - q = 1 - q$

$p = 1 - q$

So,

$p = 1 - q = 99.98\%$

$1 - q = 99.98\%$

Let the number of servers be represented with n

The above expression becomes

$1 - q^n = 99.98\%$

Convert percent to fraction

$1 - q^n = \frac{9998}{10000}$

Convert fraction to decimal

$1 - q^n = 0.9998$

Add $q^n$ to both sides

$1 - q^n + q^n= 0.9998 + q^n$

$1 = 0.9998 + q^n$

Subtract 0.9998 from both sides

$1 - 0.9998 = 0.9998 - 0.9998 + q^n$

$1 - 0.9998 = q^n$

$0.0002 = q^n$

Recall that $q = 0.05$

So, the expression becomes

$0.0002 = 0.05^n$

Take Log of both sides

$Log(0.0002) = Log(0.05^n)$

From laws of logarithm $Loga^b = bLoga$

So,

$Log(0.0002) = Log(0.05^n)$ becomes

$Log(0.0002) = nLog(0.05)$

Divide both sides by $Log0.05$

$\frac{Log(0.0002)}{Log(0.05)} = \frac{nLog(0.05)}{Log(0.05)}$

$\frac{Log(0.0002)}{Log(0.05)} = n$

$n = \frac{Log(0.0002)}{Log(0.05)}$

$n = \frac{-3.69897000434}{-1.30102999566}$

$n = 2.84310893421$

$n = 3 (Approximated)$

<em>Hence, the smallest number of servers required is 3 servers</em>

6 0

3 years ago

An email address contains the @ character. Write a program that takes asks for an email address input from the user and determin

Dvinal [7]

Answer:

Input: [email protected]

Output: the word is not an email adress

Explanation:

7 0

2 years ago

What permissions are needed in order to use a work online that is in the public domain?

Maurinko [17]

<h2 /><h2> $⇒Written \: permission \: from \\ the \: creator$ </h2>

The term “public domain” refers to creative materials that are not protected by intellectual property laws such as copyright, trademark, or patent laws. ... Anyone can use a public domain work without obtaining permission, but no one can ever own it.

5 0

2 years ago

What is the difference between - and % in mysql

jarptica [38.1K]

Answer:

Explanation:

Mysql is an open source database management system written in C and C++ language used to store, retrieve or modify a database. Mysql is used as a web database. Mysql can be combined with other programs so as to provide relational database capabilities as well as its implementation.

% matches any number of characters as well as zero characters while _ matches exactly one character.

3 0

2 years ago

Four reasons why computers are powerful

zlopas [31]

Answer:

You could search up almost anything you want

they have a lot of storage

you can find good information

they help you with a lot of things

Explanation:

also how they can process information in seconds

4 0

2 years ago