answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vlad1618 [11]
2 years ago
8

In evaluating the precedence rules used by Python, what statement is accurate? a. Addition and subtraction are evaluated after a

ssignment. b. Exponentiation and assignment operations are left associative. c. Exponentiation has the highest precedence. d. Multiplication is evaluated before unary multiplication.
Computers and Technology
2 answers:
Mama L [17]2 years ago
7 0

Answer:

None of the statement a to d can be considered accurate because for:

a) Since assignment is Non associative operator in python, addition and subtraction will be evaluated first before assignment.

b) While Exponent operator has right-to-left associativity in Python, assignment do not have associativity. therefore, both of them are not left associative

c) The operator with highest precedence is Parentheses not Exponentiation

d) The statement is false because it is correct to say "Multiplication have higher precedence than addition and subtraction" and therefore evaluated first, not unary multiplication  

Explanation:

Precedence in Python

Precedence guides the order in which operation are carried out in python.

for example

in 8 - 4 * 2, multiplication is evaluated first because it has higher precedent than subtraction.

Although, the order can be changed using Parentheses ().

example in (10 -4) * 2

values inside Parentheses will be evaluated first.

Associativity of Python operators

Associativity is the order in which an expression that has multiple operator of the same precedence is evaluated .

for example, multiplication ( * ) and floor division ( // ) have same precedence.

Almost all the operators have left-to-right associativity.

Note: operators precedence can be found online in tabular form in the Python documentation

tatyana61 [14]2 years ago
4 0

Answer:

c. Exponentiation has the highest precedence.

Explanation:

Operator precedence decides how an expression is evaluated. For example, Multiplication has higher precedence than addition, therefore a+b*c will be evaluated as a + (b*c). (expression in bold is evaluated first, then added to a)

Option a is wrong since assignment ( = ) has the lowest precedence, therefore addition and subtraction will be evaluated first.

Option b is wrong since exponentiation is right associative.

Option d is wrong because multiplication can never be unary.

Precedence of basic python operators is listed below (Order Highest to lowest):

1) Exponentiation (**)

2) Multiplication (*) , Division (/), Modulus (%). (Same rank means equal precedence)

3) Addition (+), Subtraction(-)

You might be interested in
The term that refers to the programmer reading the program from the beginning and stepping through each statement is _________.
Wewaii [24]

Answer: Desk checking

Explanation:

 The desk checking is one of the type of informal way manual testing in which the programmer use this method for evaluating or checking the coding or the different types of algorithm logic in the system.

  • It helps in identifying the errors in the program so that it can be executed properly without any interruption in the system.
  • It is one of the effective way for the error detection and also known as the modern debugging tool.

According to the given question, the desk checking is the term which is used to refers to the programmers for reading the given program step by step each statement. Therefore, Desk checking is the correct answer.

Therefore, Desk checking is the correct answer.

5 0
2 years ago
The ____ section of the project plan should describe the major project functions and activities and identify those individuals w
harkovskaia [24]

Answer:

Option(c) is the correct answer to the given question .

Explanation:

The Project responsibilities section is responsible of the planning of project.

Following are the Roles of the Project Responsibilities

  • To check the objective of the project goals.
  • Works with customers and  to define and meet client needs and the overall objective .
  • Cost estimation and expenditure production of the project
  • Ensure the fulfillment of the client .Analysis and enterprise risk management. and Tracking the progress of project.

All the others options are not responsible of the planning of project that's why Option(c) is the correct answer .

7 0
2 years ago
What level of fault is the following example: North Lake Hospital followed all of the HIPAA policies and procedures for securing
kotegsom [21]

Answer:

The level of fault for the example given is Level three (3)

Explanation:

Basic information to know about HIPAA include:

  1. <em>HIPAA</em> stands for <em>Health Insurance Portability and Accountability Act.</em>
  2. Its security rules cover technical, physical and administrative areas.
  3. There are four (4) levels of fault.

3 0
2 years ago
Read 2 more answers
2.27 LAB: Driving costs Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both doubles) as
leonid [27]

Answer:

<em>Java</em>

//////////////////////////////////////////////////////////////////////////

import java.util.Scanner;

public class MyClass {

   public static void main(String args[]) {

     double miles_gallon, gas_gallon;

     ////////////////////////////////////////////////

     System.out.print("Enter miles per gallon: ");

     Scanner myObj = new Scanner(System.in);

     miles_gallon = myObj.nextDouble();

     

     System.out.print("Enter gas dollars per gallon: ");

     gas_gallon = myObj.nextDouble();

     

     System.out.println();

     ////////////////////////////////////////////////

     double twenty_miles = 20/miles_gallon*gas_gallon;

     System.out.printf("Gas cost for 20 miles: $%.2f%n%n", twenty_miles);

     

     double seventy_five_miles = 75/miles_gallon*gas_gallon;

     System.out.printf("Gas cost for 75 miles: $%.2f%n%n", seventy_five_miles);

     

     double five_hundered_miles = 500/miles_gallon*gas_gallon;

     System.out.printf("Gas cost for 500 miles: $%.2f", five_hundered_miles);

   }

}

3 0
2 years ago
Read 2 more answers
A Cisco Catalyst switch has 24 10/100 ports, numbered 0/1 through 0/24. Ten PCs connect to the ten lowest numbered port, with th
neonofarm [45]

Answer:

Option C is correct.

Explanation:

A Cisco Catalyst, listed from the following ports. Number of PCs linked to the minimum numbered connection, with the PCs running and transmitting data across the network. Not connecting another ports to any system. Port Fast Ethernet 0/5 is in a linked state that is shown by those of the status command of the show interfaces.

Other options are not appropriate with the following scenario.

5 0
2 years ago
Other questions:
  • Henry is creating a firewall rule that will allow inbound mail to the organization. what tcp port must he allow through the fire
    10·2 answers
  • Which description of the plain text file format is most accurate?
    11·2 answers
  • Type the correct answer in the box. Spell all words correctly.
    11·1 answer
  • Data Analysis The Iris Plants Database contains 3 classes of 50 instances each, where each class refers to a type of Iris plant.
    15·1 answer
  • Your reputation and credibility will be immediately destroyed if your website contains?
    8·2 answers
  • Justin signed a rental agreement for his new condo. How long is his lease? a p e x
    15·1 answer
  • 1. The precious metals needed to make computer chips, graphic cards, and transistors are found in only a small population of cou
    8·1 answer
  • Discussion Question 10: A bank in California has 13 branches spread throughout northern California , each with its own minicompu
    13·1 answer
  • What protocol communicates data between routers representing the edges of autonomous systems?Distance-vectorLink stateInterior g
    11·1 answer
  • What answer best explains why improper netiquette is considered dangerous? Individuals who violate user policies are often charg
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!