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Salsk061 [2.6K]
3 years ago
9

What is the answer ????​

Computers and Technology
1 answer:
zzz [600]3 years ago
5 0

Answer:

august po

Explanation:

pabrainliest ty

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velikii [3]
About 15 minutes.......
7 0
3 years ago
Read 2 more answers
Annie needs to provide a form field that will allow users to select from a predefined list of options but without the ability to
Lana71 [14]

Answer:

Drop down list

Explanation:

You have not listed what the possible answers are, however a drop down list would be an option to accomplish this.

8 0
3 years 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
) Consider the array called myArray declared below that contains and negative integers. Write number of positive integers in the
grigory [225]

Answer:

#include <iostream>

using namespace std;

int main()

{

 

  int arr[]={3,-9,9,33,-4,-5, 100,4,-23};

  int pos;

  int n=sizeof(arr)/sizeof(arr[0]);

  for(int i=0;i<n;i++){

      if(arr[i]>=0){

          pos++;

      }

  }

  cout<<"Number of positive integers is "<<pos<<endl;

  return 0;

}

Explanation:

create the main function in the c++ programming and declare the array with the element. Then, store the size of array by using the formula:

int n=sizeof(arr)/sizeof(arr[0]);

after that, take a for loop for traversing the array and then check condition for positive element using if statement,

condition is array element greater than or equal to zero.

if condition true then increment the count by 1.

this process happen until the condition true

and finally print the count.

6 0
3 years ago
Point out the wrong statement: SOA eliminates the use of application boundaries, the traditional methods where security is at th
love history [14]

Answer:

All the three statements given are true so the correct option is option 4 which is none of the above.

Explanation:

The options are given in a jumbled up form the options are sorted which are as follows:

  1. SOA eliminates the use of application boundaries, the traditional methods where security is at the application level aren't likely to be effective
  2. An atomic service cannot be decomposed into smaller services that provide a useful function
  3. XML security service may be found in retail application communication.
  4. None of the mentioned

SOA stands for Service Oriented Architecture. This eliminates the application boundaries so option 1 is true.

An atomic service is defined as the smallest service which cannot be divided further. So this is true as well

The XML security service is incorporated in all retail applications. so this is true as well.

So the remaining option is just None of the mentioned.

7 0
3 years ago
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