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Olenka [21]
2 years ago
14

What should a pwc operator do to minimize the risk of accident or injury?

Computers and Technology
1 answer:
Natasha_Volkova [10]2 years ago
3 0
PWC stands fro personal water craft (aquascooter, jet bike, jet ski, wave runner, ski free, motorised surfboard etc.). The operator of PWC must be at least 16 years old.
In order to minimize the risk of accident or injury the PWC operator must follow several rules:
- the pwc operator should know the boating rules
- to monitor the speed of the vessel to ensure that a safe speed is being maintained.
- to adhere to the 5 knot rule (approximately 10kph) when close to shore, other boats (including boats at anchor) around dive flags and swimmers, fixed structures (ramps and jetties)
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Your friend Amy calls you asking for help with her new LCD monitor. She says the monitor isn't showing the whole picture. What i
swat32

Answer:     probably 1080p (which is HD)

Explanation:    Lcd monitors mainly support 1080p.

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Westkost [7]

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Explanation:

3 0
1 year ago
Lottery Number Generator Design a program that generates a 7-digit lottery number. The program should have an Integer array with
Nikolay [14]

Answer:

/******************************************************************************

                             Online C++ Compiler.

              Code, Compile, Run and Debug C++ program online.

Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <iostream>

#include <string>

#include <sstream>

using namespace std;

bool equal(int sys[],int user[])

{

    for (int i=0;i<7;i++)

{

 if(sys[i]!=user[i]){

     return false;

 }

}

return true;

}

int main()

{

int sys[7];

int user[7];

int min=0

;int max=9;

string userinput;

while(0==0){

for (int i=0;i<7;i++)

{

    sys[i]=rand() % (max - min + 1) + min;

}

cout <<endl;

   cout<<"enter numbers"<<endl;

for (int i=0;i<7;i++)

{

 getline (cin,userinput);

    if(userinput=="x"){

        return 0;

    }

    else{

 stringstream(userinput) >> user[i];

   

    }

}

     cout<<"User number"<<endl;

for (int i=0;i<7;i++)

{

    cout << user[i];

}

    cout<<"system number"<<endl;

for (int i=0;i<7;i++)

{

    cout << sys[i];

}

if(equal(sys,user))

{

   cout<<"You won !"<<endl;

}else {

       cout<<"Try again :("<<endl;

}

}

   return 0;

}

Explanation:

Using c++ rand function generate a random number between 0-9.

Formula for random number is rand (max-min +1)+min.

Run this in a loop for 7 time and store each number to an array index in sys array which is for system generated number.

now using string take input from user and check if input is x close program else use stringstream to parse input string to int and store it in user array. Stringstream is a cpp header file used for parsing and handling of strin g inputs. Run this program in loop for 7 times.

Now create a function of type boolean denoted by "bool". This will take both arr as parameter and check if both are equal or not. It compares eac index of user array against each index of sys array and if both values are not equal returns false.

5 0
3 years ago
Suppose you have a file of data of approximately 100,000 personnel records (FYI, 213 = 8192 and 214 = 16384) using Social Securi
Natali [406]

Answer:

See explaination

Explanation:

The reasons why indexed sequential search structure is better are:

1. In index sequential search any field of the records can be used as the key. This key field can be numerical or alphanumerical.

2. Since each record has its data block address, searching for a record in larger database is easy and quick. There is no extra effort to search records. But proper primary key has to be selected to make efficient.

3. This method gives flexibility of using any column as key field and index will be generated based on that. In addition to the primary key and its index, we can have index generated for other fields too. Hence searching becomes more efficient, if there is search based on columns other than primary key.

The reasons why 5 B-tree is better:

1.The B-tree Provides support for range of queries in an efficient manner and You can iterate over an ordered list of elements.

2. B-Tree algorithms are good for accessing pages (or blocks) of stored information which are then copied into main memory for processing. In the worst case, they are designed to do dynamic set operations in O(lg n) time because of their high "branching factor" (think hundreds or thousands of keys off of any node). It is this branching factor that makes B-Trees so efficient for block storage/retrieval, since a large branching factor greatly reduces the height of the tree and thus the number of disk accesses needed to find any key.

3. It is a generalization of a BST in that a node can have more than two children. These are self-balancing and hence the average and worst complexities is logarithmic. We opt for these when the data is too huge to fit in main memory. These structures are used in database indexing and help in faster operations on disk

the additional informations is we should first decide to choose which structure is suiatable for which algoritm in terms of space and time and then use the appropriate search algorithm.

8 0
3 years ago
For the past five days, the Howard family has traveled these miles: 389;126;419;93; and 394. Find the range and how. Show all yo
Fofino [41]
The answer is 326.

Range is found by subtracting the smallest number in the data set from the largest number.

Highest number: 419
Lowest number: 93

419-93
=326

(Next time make sure to post this under the Mathematics section.)
5 0
3 years ago
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