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2 years ago

In order to preview an attachment in an e-mail, click the attachment in the ______

Computers and Technology

1 answer:

jasenka [17]2 years ago

3 0

Answer:

preview

Explanation:

plz mark it as brainliest answer as it will also give you 3 pts

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What symbol do we use to assign a value to a variable or constant in algorithms?

jekas [21]

The symbol that we do use to assign a value to a variable or constant in algorithms is =.

<h3>What is used to assign a constant to a variable?</h3>

The const keyword is known to be one that tends to specifies a variable or object value that is known to be constant.

In computing and computer programming, there are different kinds of variables as well as symbols that are used for different purposes.

Note that if you assign a variable, you need to use the = symbol and thus The symbol that we do use to assign a value to a variable or constant in algorithms is =.

Learn more about algorithms from

brainly.com/question/13800096

#SPJ1

3 0

1 year ago

A computer retail store has 15 personal computers in stock. A buyer wants to purchase 3 of them. Unknown to either the retail st

Dima020 [189]

Answer:

a. 1365 ways

b. Probability = 0.4096

c. Probability = 0.5904

Explanation:

Given

PCs = 15

Purchase = 3

Solving (a): Ways to select 4 computers out of 15, we make use of Combination formula as follows;

$^nC_r = \frac{n!}{(n-r)!r!}$

Where $n = 15\ and\ r = 4$

$^{15}C_4 = \frac{15!}{(15-4)!4!}$

$^{15}C_4 = \frac{15!}{11!4!}$

$^{15}C_4 = \frac{15 * 14 * 13 * 12 * 11!}{11! * 4 * 3 * 2 * 1}$

$^{15}C_4 = \frac{15 * 14 * 13 * 12}{4 * 3 * 2 * 1}$

$^{15}C_4 = \frac{32760}{24}$

$^{15}C_4 = 1365$

<em>Hence, there are 1365 ways </em>

Solving (b): The probability that exactly 1 will be defective (from the selected 4)

First, we calculate the probability of a PC being defective (p) and probability of a PC not being defective (q)

<em>From the given parameters; 3 out of 15 is detective;</em>

So;

$p = 3/15$

$p = 0.2$

$q = 1 - p$

$q = 1 - 0.2$

$q = 0.8$

Solving further using binomial;

$(p + q)^n = p^n + ^nC_1p^{n-1}q + ^nC_2p^{n-2}q^2 + .....+q^n$

Where n = 4

For the probability that exactly 1 out of 4 will be defective, we make use of

$Probability = ^nC_3pq^3$

Substitute 4 for n, 0.2 for p and 0.8 for q

$Probability = ^4C_3 * 0.2 * 0.8^3$

$Probability = \frac{4!}{3!1!} * 0.2 * 0.8^3$

$Probability = 4 * 0.2 * 0.8^3$

$Probability = 0.4096$

Solving (c): Probability that at least one is defective;

In probability, opposite probability sums to 1;

Hence;

<em>Probability that at least one is defective + Probability that at none is defective = 1</em>

Probability that none is defective is calculated as thus;

$Probability = q^n$

Substitute 4 for n and 0.8 for q

$Probability = 0.8^4$

$Probability = 0.4096$

Substitute 0.4096 for Probability that at none is defective

Probability that at least one is defective + 0.4096= 1

Collect Like Terms

Probability = 1 - 0.4096

Probability = 0.5904

8 0

3 years ago

You connect your computer to a wireless network available at the local library. You find that you can access all of the websites

leva [86]

Answer:

There must be a proxy server that is not allowing access to websites

Explanation:

A wireless network facility provided in colleges, institutions, or libraries is secured with a proxy server to filter websites so that users can use the network facility for a definite purpose. Thus, that proxy server is not allowing access to all of the websites to the user on the internet except for two.

4 0

2 years ago

RSA encryption relies on

oee [108]

Answer:

the difficulty in factoring large numbers

a public key that the server and the user’s computer know

the use of prime numbers

a private key that only the server knows

Explanation:

ege 2021

5 0

2 years ago

Which function in spreadsheet software can be used to predict future sales or inventory needs?

melisa1 [442]

create a forecast, Excel creates a new worksheet that contains both a table of the historical and predicted values and a chart that expresses this data. A forecast can help you predict things like future sales, inventory requirements, or consumer trends.

6 0

2 years ago

Read 2 more answers