. Which of the following personality characteristics areassociated
with people who are likely to exhibit violent behavior on thejob?
a. Neurotic
b. Optimistic
c. Extraverted
d. Type A

Answers

Answer 1

Answer:

The correct answer is A. People that are likely to exhibit violent behavior on the job are associated with neurotic personality.

Explanation:

Neurosis or neuroticism is a psychological tendency to maintain certain difficulties for emotional control and management.

People with high levels of neuroticism usually have low moods, close to depression or dysthymia, and show negative feelings such as envy, anger, anxiety and guilt. Neurotic people present this symptomatology much more frequently and severe than people who do not suffer from this condition.

Answer 2

The personality characteristic that is associated with people who have the tendency to display violent behavior on the job is: a. Neurotic.

Who is a Neurotic Person?

Neurotic is a term used to described someone that is afflicted by neurosis. It implies a drastic and irrational mental, emotional or psychical reactions that are often out of proportion towards a minor problem.

Therefore, the personality characteristic that is associated with people who have the tendency to display violent behavior on the job is: a. Neurotic.

Learn more about neurotic on:

https://brainly.com/question/1305930


Related Questions

What are the light sources offiber optics?

Answers

Answer:

Light sources of fiber optics are used to inject light into a fiber optic cable. There are two varieties of light sources: laser diodes and light emitting diodes (LEDs) . They’re further differentiated by the wavelength and the type of cable.

LEDs are economical, slow in speed, easy to handle, multi mode-only, and have a wide output pattern.

Laser diodes are of expensive and faster than LED's, allow single-mode or multi mode both , and have a narrow output pattern.

How do you return a value from a function?

Answers

Answer:

return instruction used to return a value from a function.

Explanation:

Function is a block of statement which perform the special task.

Syntax for define a function:

type name(parameter_1, parameter_2,...)

{

  statement;

return variable;

}

In the syntax, type define the return type of the function. It can be int, float, double and also array as well. Function can return the array as well.

return is the instruction which is used to return the value or can use as a termination of function.

For return the value, we can use variable name which store the value or use direct value.

when organizations request for bids for contracts on their own website procurement, such business is classified as an

A. sell-side marketplace

B. none of these

C. buy-side marketplace

D. electronic exchange

Answers

Answer:

When organizations request for bids for contracts on their own website procurement, such business is classified as an sell-side marketplace -A.

When organizations request for bids for contracts on their own website procurement, such business is classified as an sell-side marketplace sell-side marketplace.

Which of the following is used to verify a user's identity? A) Identification B) Authentication C) Validation D) Authorisation E) Accountability

Answers

Answer:

A? "A means of proving a person identity"

Explanation:

In Java a sub class of a/an______ can override a method of itssuper class and declare it ___________ . In that case the subclassmust be declared abstract.
Abstract class, non abstract class
non abstract class, abstract
non abstract class , reference data type
overloaded class, private

Answers

Answer:

non abstract class,abstract

Explanation:

In java a sub class of a concrete class or non abstract class can override a method of its upper class  and declare it abstract . This is because it does not happen very often, but it is useful when the implementation of  the method in the upper class is not valid in the  subclass .

This loop is a good choice when you know how many times you want the loop to iterate in advance of entering the loop.



1. do-while

2. while

3. for

4. infinite

5. None of these

Answers

Answer:

This loop is a good choice when you know how many times you want the loop to iterate in advance of entering the loop.: for - 3.

Infinite means not stop. Something that keeps going and going! So the answer would have to be 4 :)

how to write a function "void funct()" which will accept a string from the user as input and will then display the string backward.

Answers

Answer:

#include <bits/stdc++.h>

using namespace std;

void funct(){

   string name;

   cout<<"enter the string: ";

   cin>>name;

   

    reverse(name.begin(), name.end());

    cout<<"The string is : "<<name<<endl;

   

}

int main()

{

   funct();

 

  return 0;

}

Explanation:

create the function funct() with return type void and declare the variable type string and print a message for asking to used enter the string.  

The string enter by user is store in the variable using cin instruction.

after that, we use a inbuilt function reverse() which takes two argument.

firs argument tell the starting point and second index tell the ending point. then, the reverse function reverse the string.

name.begin() it is a function which return the pointer of first character of string.

name.end()  it is a function which return the pointer of last character of the string.

finally, print the reverse string.

for calling the function, we have to create the main function and then call the function.

What will the following C code print out?

int x = 7, y = 5;

if (x > 5)

if (y > 5)

printf(“x and y are > 5”);

else

printf(“x is <=5”);
a) “x and y are > 5”

b) “x is <=5”

c) nothing will be printed

Answers

Answer:

x is <=5

Explanation:

If-else is the statement that is used to execute the statement when the condition is true.

syntax:

if(condition){

    statement;

}else{

    statement;

}  

if we do not provide the curly bracket, still the statement is valid.

in the question, x =7 and y=5

then, check the condition 7 > 5 condition true. it moves to the next if statement and check 5 > 5, condition false. Then it moves to the else part and executes the statement.

and print the output "x and y are > 5".

Under Rule 504 ofRegulation D, a company can sell up to ______ of securitiesin

any 12-monthperiod.

a. $50,000

b. $100,000

c. $500,000

d. $1,000,000

Answers

Answer:

5,000,000 (5 million) of securities in any 12-month period.

Explanation:

Based on my extensive research on regulations. Rule 504 of Regulation D provides an exemption for having to register under the federal securities laws. This is usually for companies that are in business with products or services that are considered as securities or commodities. This Rule allows a company to sell up to 5,000,000 of securities in any 12-month period.

This answer is not part of the list of available answers but it is correct. Those answers may be outdated.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

Write a do-while loop that asks the user to enter two numbers. The numbers should be added and the sum displayed. The user should be asked if he or she wishes to per- form the operation again. If so, the loop should repeat; otherwise it should terminate.

Answers

The do-while loop for the given problem is shown below.  

do  

{  

  // user asked to enter two numbers  

  cout<<"Enter two numbers to be added."<<endl;  

  cin>>num1;  

  cin>>num2;  

  sum = num1 + num2;  

 

  // sum of the numbers is displayed  

  cout<<"Sum of the two numbers is "<<sum<<endl;  

  // user asked whether to perform the operation again  

  cout<<"Do you wish to continue (y/n) ?"<<endl;  

   cin>>choice;  

}while(choice != 'n');  

The variables to hold the two numbers and their sum are declared as float so that the program should work well for both integers and floating numbers.

float num1, num2, sum;

The char variable is taken since it holds only a single-character input from the user, 'y' or 'n'.

char choice;

The whole program is given below.

#include <iostream>

using namespace std;

int main() {

float num1, num2, sum;

char choice;  

do  

{  

  // user asked to enter two numbers  

  cout<<"Enter two numbers to be added."<<endl;  

  cin>>num1;  

  cin>>num2;  

  sum = num1 + num2;  

  // sum of the numbers is displayed  

  cout<<"Sum of the two numbers is "<<sum<<endl;  

  // user asked whether to perform the operation again  

  cout<<"Do you wish to continue (y/n) ?"<<endl;  

  cin>>choice;  

}while(choice != 'n');

cout<<"Quitting..."<<endl;

}

Write a program to print out the digits of a number in English. For example, if the number is 153, the output should be “One Five Three.” This program should allow users to input the number by using keyboard

Answers

Answer:

#include <bits/stdc++.h>

using namespace std;

string value(int i)//function return the string of the integer..

{

  if(i==0)

  return "Zero";

  if(i==1)

  return "One";

  if(i==2)

  return "Two";

  if(i==3)

  return "Three";

  if(i==4)

  return "Four";

  if(i==5)

  return "Five";

  if(i==6)

  return "Six";

  if(i==7)

  return "Seven";

  if(i==8)

  return "Eight";

  if(i==9)

  return "Nine";

}

int main() {

int n,a[100],c=0;

cout<<"Enter the integer"<<endl;

cin>>n;//taking input of n..

while(n>0)//storing the integer in the array in reverse order..

{

    int digit=n%10;

    a[c++]=digit;

    n/=10;

}

int s=0,e=c-1;

while(s<=e)//reversing the array.

{

    int temp=a[s];

    a[s]=a[e];

    a[e]=temp;

    s++;

    e--;

}

for(int i=0;i<c;i++)//printing the string according to the number..

{

    cout<<value(a[i])<<" ";

}

cout<<endl;

return 0;

}

Output:-

Enter the integer

230

Two Three Zero

Explanation:

I have created a function which returns string according to the integer.So i have taken an array to store the digits of the number and reversing it so the number is stored as it is in the array.Then printing the numbers accordingly.

Write a "while" loop equivalentto the following "for" loop: (2Points)
int i,tt = 0;for (i = 0; i < 12; i += 3){t = t + i;cout << t;}cout << endl;

Answers

Answer:

int i,t = 0;

   i=0;  //initialize

   while(i<22){

       t = t + i;

           cout << t;

           i += 3;   //increment

   }

   cout << endl;

Explanation:

Loops are used to execute the part of the code again and again until the condition is not true.

In the programming, there are three loop

1. for loop

2. while loop

3. do-while loop

The syntax of for loop:

for(initialize; condition; increment/decrement){

   statement;

}

The syntax of while loop:

initialize;

while(condition){

   increment/decrement;

}

In the while, we change the location of initializing which comes before the start of while loop, then condition and inside the loop increment/decrement.  

After inserting (or deleting) a node from an AVL tree, the resulting binary tree does not have to be an AVL tree.

True

False

Answers

True,After inserting (or deleting) a node from an AVL tree, the resulting binary tree does not have to be an AVL tree.

After inserting or deleting a node from an AVL tree, the resulting binary tree does not necessarily have to be an AVL tree. Here's a detailed explanation:

An AVL tree is a self-balancing binary search tree where the heights of the two child subtrees of any node differ by at most one. When performing operations such as insertion or deletion in an AVL tree, it is crucial to maintain this balancing property to ensure that the tree remains an AVL tree.

However, during the process of insertion or deletion, the balance factor of nodes may become violated, causing the tree to lose its balance. This imbalance can occur due to various factors such as rotations, double rotations, or node restructuring.

In some cases, after inserting or deleting a node, the resulting binary tree may still satisfy the AVL tree property without requiring any additional adjustments. In these cases, the tree remains an AVL tree.

However, there are scenarios where the resulting tree violates the AVL property and becomes unbalanced. In such cases, it is necessary to perform rebalancing operations to restore the AVL property. These operations typically involve rotations or restructuring of nodes to ensure that the heights of the subtrees remain balanced.

Therefore, it is true that after inserting or deleting a node from an AVL tree, the resulting binary tree does not have to be an AVL tree. Maintaining the AVL property may require additional adjustments to restore balance, making it possible for the resulting tree to deviate from the AVL tree structure initially.

The relational database model was created by E.F. Codd.

A.

True

B.

False

Answers

The answer is A. True

Explanation:
E. F Codd, invented he model in the year 1970.

. If you executean infinite recursive function on a computer it will executeforever.
a. True
b.False

Answers

Answer:

b. False

Explanation:

If you execute an infinite recursive function on a computer it will NOT execute forever.

A is the smallest unit of application data recognized bysystem software.

1 Row

2 Field

3 Record

4 Table

Answers

Answer:

A FIELD is recognized as the smallest unit of application data by system software.

Explanation:

Field is recognized as the smallest unit of application data by any system software. The data in relational data base management system ( RDBMS ) is stored as rows also called as database records or simply records. Each record is a row in database and each record contains fields. Columns in data base are nothing but the fields of all the records. They types of fields are fixed length and variable length.

True / False
The architecture of a computer determines its machine language.

Answers

Answer: True

Explanation:

The architecture of the computer determine the processor and it determines whether we will have fixed length instructions or variable length instructions.

We have CISC and RISC architectures which uses different types of instructions and the data are processes in different machine languages.

What applications work best with multiplexing?Why?

Answers

Answer:

Multiplexing is the process of combining multiple analog and digital signal into one signal over a shared medium and it is most efficient service, which is provided by the transport layer protocol. The main purpose of multiplexing is that signal are transmitted efficiently.

It contains applications as:

Client-server Application

Many to single client-server application

Many to many client-server application

Many client to many server application is the best because it is improving server application and processing a client request within a group on any server.

What is the difference between an argument and a parameter variable?

Answers

Answer:

The value enter in the function calling is called argument. Argument passed to function.

The variable declare in the function to capture the pass value from the calling function is called parameters.  

Explanation:

Argument is used in the calling function and parameter is used in the defining the function.

for example:

//create the function

int count(parameter_1, parameter_2,.....)

{

  statement;

}

count(argument_1. argument_1,.....);   //call the function

All of the followingshould be followed by entrepreneur for being effective

leader,EXCEPT:

a. Show respect foremployees

b. Show concern foremployees’ welfare

c. Try to do everythinghimself

d. Encourage and praiseothers

Answers

Answer:

C - Try to do everything himself

Explanation:

It is usually never advisable for an entrepreneur to attempt to do everything themselves. Delegation (assigning a task to a subordinate) is an important aspect of entrepreneurial leadership, this benefits the entreprenuer himself and allows his employees to feel a sense of confidence because they were trusted witht the task and it is a chance to show what they are capable of.

You may not use the break statement in a nested loop



True False

Answers

Answer:

You may not use the break statement in a nested loop - False

It false. You may use the break statement in a nested loop

What is the most popular service that was supported by almost every early computer networks? In your opinion, what’s the reason for that service to be most popular?

Answers

Answer:

The most popular service supported by every early computer networks:-

Telnet

SMTP(Simple Mail Transfer Protocol)

Reason are as following:-

Telnet:-

When there the number of internet using  people was very less They used to get connected with LAN and Telnet.

It was very useful for bidirectional interactive text oriented communication.  

SMTP:-

SMTP(Simple Mail Transfer Protocol) introduced in 1982 and was one of the most used protocol for e-mails.

It is still used extensively and  It was used for very long time to send and receive email messages for a very long time.

Hence, these are the computer network protocols that are being used as the popular devices.

what impact did the technical standard have on software development?

Answers

Answer:

The technical standard had a huge impact on the world of software development.

Explanation:

In the world of software development and coding in general, every coder has a specific style. Which can cause confusion when working with other coders, which in term causes errors. The Technical Standard allows Everyone to communicate with one another in a way that everyone will understand. Thus allowing for smoother development and less errors.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

What is the purpose and significanceof the following programming constructs in any programminglanguage
a) Variable
b) Constant
c) Assignment Initialization

Answers

Answer:

a) Variable-A variable is a symbolic name (or reference to) data. The name of the variable reflects what data the variable includes.It's purpose is to saving a data on particular point,it is a name of the address we want to operate.

Example-a,a1,a23,abc,abh_tr etc.

                It should start with the characters, it may include numbers but not in starting and also the underscore at the starting.

b)Constant-A Constant is a value that we can't change, we stores it like a variable.The significance of constant : it's just a poor style to change the velocity of light, the value of pi, and other things like that. if we assumes some value it may produce an error, so making them constants is a type of defensive programming.

Example- pi=3.14 etc.

c) Assignment Initialization-The process of assigning a specific value to a variable at any point in a program or code because of the program logic requirement is known as an assignment operation.

Initialization-Defines and gives an original value in the same declaration to a stated variable.

Example int x = 7;

In this we can initialize the type of variable like - integer,floating etc.

We can declare the variable value in the same line.So,it helps in removing lines and saves time.  

Some misconceptionsabout communication are:

o Communication solves all problems.

o Communication physically breaks down.

o The meaning we attach to a word will be themeaning everyone else attaches to

the word.

o All of the given options

Answers

Answer:

All of the given options

Explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Communication is an insanely important and useful, but there are a lot of misconceptions about communication. Based on the answers given in the question, the correct answer would be "All of the Given Options"

Communication can solve many problems but the statement that it can solve all problems is not completely accurate. Whether communication can solve a specific problem depends varies from person to person.

Communication can physically break down since not everyone speaks the same language not everyone can understand each other. Also another physical way is that certain dialogue choices can lead to physical confrontation.

Lastly, the meaning of a word can mean different things to different people. For example, "Happiness" every single person has a unique definition of happiness while others simply say it doesn't exist.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

Write a program in which you input three numbers they canhave decimals so float values and the program gives you the minvalue out of the three. Please need asap thank you

Answers

Answer:

Following is the c++ code:-

#include <bits/stdc++.h>

using namespace std;

int main() {

   float a,b,c;//declaring three float variables..

   cout<<"enter values"<<endl;

   cin>>a>>b>>c;//taking input..

   float mi=min(a,b);//finding minimum in a and b..

   mi=min(mi,c);// finding minimum from mi and c.

   cout<<mi<<endl;//printing the answer.

return 0;

}

Explanation:

I have taken three float variables to hold the values.

then I am finding the minimum in a and b and storing it in mi.

Then finding minimum from mi and c so we will get our final minimum number.

What is the difference between“Internetwork and the Internet”?

Answers

Answer: Inter-network-It is the network that gets created joining of many networks together and form a individual large network .

Internet- it is the global network that contains that contains the collection of all the networks.

Explanation:

Internet is the network at a global level which has the access to connect the various computer network together and inter-network is the network having the combination of many network together to form a single unit of network  .Internet usually forms the connection using routers , servers etc and inter-network uses LAN's ,PAN's etc. to form the connection

__________ is a mathematical model of a real system in the form of a computer program.
(A) Transmitter
(B) Spreadsheet
(C) Simulation
(D) Modulation

Answers

Simulation is a mathematical model of a real system in the form of a computer program.

Answer is Simulation- (C)

Answer:

The correct answer is letter "C": Simulation.

Explanation:

A computer simulation is an algorithm, computer software or a network of servers that have the goal of creating a simulation of an abstract model of a given system. The model is made up of equations that replicate the functional relationships that the real system could have.

Find the second largest and second smallest element in a given array. You can hardcode/declare the array in your program.

Answers

Answer:

Program for Second largest in an array:-

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int f,s,n; //declaring 3 variables f for first largest s for second largest n is size.

    cin>>n;//taking input size of the array.

    if(n<2)//n should be greater than 2..

    cout<<"n should be greater than 2"<<endl;

    int a[n];// array of size n.

    for(int i=0;i<n;i++)

    {

        cin>>a[i];

    }

   f = s = INT_MIN;//initialising f and  s with minimum value possible.

   for (int i =0; i <n;i ++)  

   {  

       if (a[i] > f)  

       {  

           s = f;  

           f = a[i];  

       }  

       else if (a[i] > s && a[i] != f)  

           s = a[i];  

   }  

   if (s == INT_MIN)  

       cout<<"No second largest exists"<<endl;

   else

       cout<<"Second largest element is :"<<s;

       return 0;

}

Program for second smallest element is:-

#include <bits/stdc++.h>  

using namespace std;  

int main()  

{  

int f,s,n; //declaring 3 variables f for first smallest s for second smallest n is size.  

cin>>n;//taking input size of the array.  

if(n<2)//n should be greater than 2..  

cout<<"n should be greater than 2"<<endl;  

int a[n];// array of size n.  

for(int i=0;i<n;i++)  

{  

cin>>a[i];  

}  

f = s = INT_MAX;//initializing f and s with maximum value possible.  

for (int i =0; i <n;i ++)  

{  

if (a[i]<f)  

{  

s = f;  

f = a[i];  

}  

else if (a[i] < s && a[i] != f)  

s = a[i];  

}  

if (s == INT_MAX)  

cout<<"No second smallest exists"<<endl;  

else  

cout<<s;//it is the second smallest element...  

return 0;  

}

Explanation:

For Second largest:-

1. Declare 3 variables f, s and n. where n is size the array f is first largest and s is second largest.

2. Initialize f and s with minimum value possible.

3. Iterate over the array a and do the following steps:-

   1.If element at ith position is greater than f. Then update f and s.

   s=f and f=a[i].

   2.If the element is between s and f then update s as.

   s=a[i].

4. Print s because it is the second largest in the array.

For Second smallest:-

1. Declare 3 variables f, s and n. where n is size the array f is first smallest and s is second smallest.

2. Initialize f and s with minimum value possible.

3. Iterate over the array a and do the following steps:-

   1.If element at ith position is smaller than f. Then update f and s.

   s=f and f=a[i].

   2.If the element is between s and f then update s as.  

   s=a[i].  

4. Print s because it is the second smallest in the array.

Given an array of integers an). The array is already NOT write C++ statements to fill the array eye write C++ statements that print to the screen how many values in the how many values are odd. In addition, the statements output to the scre the array that are even. s

Answers

Answer:

#include<iostream>

using namespace std;

int main () {

   int n;

   int odd=0,even=0;

  cout<<"Enter the number of element store in the array: ";

  cin>>n;

  int arr[n];

  for(int i=0;i<n;i++){

     cin>>arr[i];

  }

  for(int i=0;i<n;i++){

       if(arr[i]%2==1){

           odd++;

       }else{

           even++;

       }

  }

  cout<<"The number of odd values is: "<<odd<<endl;

  cout<<"The number of even values is: "<<even<<endl;

}

Explanation:

Include the library iostream for input/output.

Create the main function and declare the variables.

Then, print the message on the screen and store the value enter by the user for the size of the array. After that, take a for loop and store the values in the array enter by the user.

then, take a for loop for traversing to the array and check the condition for odd and even by using if-else statement.

for odd: If odd values divided by 2 it gives 1 remainder.

for even: If even values divided by 2 it gives zero remainder.

if condition true, then update the counter.

finally, print the result.

Other Questions
5N to the left and 20 N to the right. If the couch has a mass of 45 Kg determine its acceleration A) 3m/s2 to the rightB) 1.8 m/s2 to the right C) 2.2 m/s to the rightD) 0.33 m/s2 to the right :Allen is building birdhouses that require 12-ft-long boards. How many pieces that are exactly 12ft long can be made from a board that is 814ft long? Review To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 12 cm in diameter and 60 cm in length. You would like a 2.0 A current to produce a 2.6 kG magnetic field inside your solenoid. Part A What is the total length of wire you will need to meet these specifications? Express your answer using two significant figures. What is the order of rotational symmetry for the figure 3) All the following are parts of acircle exceptA diameter.B. chord.C. sector.D. base. Elston Company compiled the following financial information as of December 31, 2017: Service revenue $700,000 Common stock 180,000 Equipment 240,000 Operating expenses 750,000 Cash 210,000 Dividends 60,000 Supplies 30,000 Accounts payable 120,000 Accounts receivable 90,000 Retained earnings, 1/1/17 450,000Elston's retained earnings on December 31, 2017 are: Which of the following represents the factorization of the trinomial below?x^2 + 13x - 30 The fast axoplasmic transport includes proteins from the __________ and transported on ___________. The slow axoplasmic transport includes proteins from the ____________.a. RER, microtubules, cytoplasmb. microtubules, cytoplasm, RERc. cytoplasm, RER, microtubulesd. cytoplasm, RER, microtubules In a soccer team, 1/3 of the players ride a bike to practice, 25% walk to practice and the remaining 15 players are driven by their parents. How many players are there in the team?a. 42 b. 36 c. 30 d. 21 Lakita wants to get a degree in accounting so that she can become a CPA. She has decided to take classes online, however, because she is very timid about going to a class with 30 other students where she might be expected to speak out. She is afraid that if she says something silly, gives a wrong answer, or just acts in an inappropriate way she will be shamed in front of others. Lakita has always struggled with this problem, and has thus lived a relatively isolated life for quite a few years. Lakita might be diagnosed as having _____ personality disorder.antisocialnegativisticavoidantschizoid Nick mowed about 3/5 of the school lawn yesterday. The mowed another 1/4 of the remaining portion of the lawn this morning. How much is left to mow? A. 1/4B.2/5C.3/5D.3/4E.19/20 Which definitionmatches the term "induction"?a- Reasoning from specific evidence to a general conclusionb- Reasoningfrom a generalization to a specific conclusionc- Reasoning from a vivid personal narratived- Reasoningfrom a variety of evidence What is the solution to the equation below? Round your answer to twodecimal places.2^3x=91 Find x.A.8B.10C.10.5D.12 At 12 weeks gestation, a client who is Rh negative expels the total products of conception. What is the nursing action after it has been determined that she has not been previously sensitized? Determine the equation of quadratic function represented by the table of value below. Given f(x) and g(x) = f(x) + k, use the graph to determine the value of k.A.) 2B.) 3C.) 4D.) 5 The two windings of transformer is: a)- Conductively linked. b)- Not linked at all. c)- Inductively linked d)- Electrically linked. What is the advantage of and MRI scan over a CT scan How many 3 digit pass codes can be made from the digits 0 to 9 if the first number is not allowed to be a 0?