assignment of 9th class

Assignments for Class 9, 10, 11 & 12

Assignments for all Classes and all chapters in PDF format will be available very soon, Revision questions, key points of each chapters and other practice material updated for new academic session 2023-24. Download NCERT Books and offline apps for all class updated for new academic year 2023-24. Assignments for the academic year 2023-24 based on latest CBSE Curriculum will be uploaded very soon.

Chapter wise assignments for class 9 Maths are given below updated for new academic session 2023-24. These assignments will be available in updated form along with new assignments and chapter wise tests with solutions. After the completion of chapters from NCERT Books and Exemplar Books, students should go for Assignments. Visit to Discussion Forum to ask your doubts related to NIOS and CBSE Board. Download NCERT Books and Offline Apps based on latest CBSE Syllabus.

Assignments Chapter 4:  1   2   3   4

Assignments Chapter 8:  1   2   3   4

Assignments Chapter 10:  1   2   3

Assignments Chapter 13:  1   2   3   4   5

Assignments Chapter 14:  1   2   3

Assignments Chapter 15:  1   2

Revision notes are very help full for practice. In the assignments of  Chapter 1  and  Chapter 2 , a lots of extra questions with answers are given for practice.

• Revision Notes for Chapter 1
• Revision Notes for Chapter 2
• Revision Notes for Chapter 3
• Revision Notes for Chapter 5
• Revision Notes for Chapter 6
• Revision Notes for Chapter 7
• Revision Notes for Chapter 12

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Maths assignment class viii | quadrilateral, math assignment class ix ch-2 | polynomials,   maths assignment class 9th  chapter 2   polynomials.

Mathematics Assignment on Polynomials 

Class ix chapter 2.

   b)  Show that x + 2 is a factor of  P(x) = x 4  - x 2  - 12.

Ans: P(-2) = 0  ⇒ x + 2 is the factor of P(x)

Hint: If remainder = 0 then given function is the factor of the given polynomial otherwise not.

a) x 2  + 11x + 30      : Ans  (x + 5)(x + 6)

b) a 2  - 16a + 63       : Ans  (a - 7)(a - 9)

c)15 - 2x - x 2            : Ans      (3 - x)(5 + x)

d) 3 + 5x - 2x 2       : Ans     (1+ 2x)(3 - x)                                                         

e) 3m 2  - 20m - 7   : Ans  (3m+1)(m - 7)                            

f) 24m 2  + m - 23      : Ans (m + 1)(24m - 23)

g) 2x 2  + 11xy - 21y    : Ans    (x + 7y)(2x - 3y)                            

h) 7(x + y) 2 + 48(x + y) - 7       : Ans  (x + y + 7)(7x + 7y - 1)

I) 2m 4 n - 6m 2 n + 4n                 : Ans  2n(m+1)(m-1)(m 2 -2)                        

 j) 36(a+3b) 2  - 36(2a-3b) 2    : Ans  (16a+3b)(33b-4a)

k) x 3  + 3x 2  - 4x - 12                   : Ans (x - 2)(x + 2)(x + 3)                          

l) 2x 3  - 9x 2   +x + 12                   : Ans  (x + 1)(x - 4)(2x - 3)

m) x 3  -3x 2  -10x+24              : Ans   (x + 3)(x - 4)(3x - 2)                            

n) 2x 3  -7x 2  - 3x + 18               : Ans  (x - 2)(x - 3)(2x + 3)

o) 3x 3  + x 2   - 38x + 24               : Ans   (x - 3)(x + 4)(3x - 2)                          

p)(x 3 - (y - z) 3 )               : Ans   (x – y + z)(x 2 + y 2 + z 2 - 2yz – xy - xz)

a)  8x 3  - 125y 3  - z 3  - 30xyz                            

b)  125x 3  - 8 + 27y 3  + 90xy      

c)  3√3a 3 - 5√5b 3 - 8c 3 - 6√15abc           

d)  (5a - 4b) 3 + (4b - 6c) 3  + (6c - 5a) 3

e)  a 3  + (a - 1) 3  + (1 - 2a) 3                                                     

f)  (3x + 3y - 5z) 3  + (2y + 3z - 5x) 3  + (2z + 2x - 5y) 3

g)   (2x + y) 3 - (x + y) 3                       

h)  64m 6 -n 6  : Ans:  (2mn + n)(4m - 2mn + n)(2m - n)(4m + 2mn + n)

a)  (-15) 3 + (-13) 3 + (28) 3      Ans: 16380 b)  (75) 3 + (-50) 3 + (-25) 3     Ans: 281250

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Grade Calculator

Use this calculator to find out the grade of a course based on weighted averages. This calculator accepts both numerical as well as letter grades. It also can calculate the grade needed for the remaining assignments in order to get a desired grade for an ongoing course.

Final Grade Calculator

Use this calculator to find out the grade needed on the final exam in order to get a desired grade in a course. It accepts letter grades, percentage grades, and other numerical inputs.

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The calculators above use the following letter grades and their typical corresponding numerical equivalents based on grade points.

Brief history of different grading systems

In 1785, students at Yale were ranked based on "optimi" being the highest rank, followed by second optimi, inferiore (lower), and pejores (worse). At William and Mary, students were ranked as either No. 1, or No. 2, where No. 1 represented students that were first in their class, while No. 2 represented those who were "orderly, correct and attentive." Meanwhile at Harvard, students were graded based on a numerical system from 1-200 (except for math and philosophy where 1-100 was used). Later, shortly after 1883, Harvard used a system of "Classes" where students were either Class I, II, III, IV, or V, with V representing a failing grade. All of these examples show the subjective, arbitrary, and inconsistent nature with which different institutions graded their students, demonstrating the need for a more standardized, albeit equally arbitrary grading system.

In 1887, Mount Holyoke College became the first college to use letter grades similar to those commonly used today. The college used a grading scale with the letters A, B, C, D, and E, where E represented a failing grade. This grading system however, was far stricter than those commonly used today, with a failing grade being defined as anything below 75%. The college later re-defined their grading system, adding the letter F for a failing grade (still below 75%). This system of using a letter grading scale became increasingly popular within colleges and high schools, eventually leading to the letter grading systems typically used today. However, there is still significant variation regarding what may constitute an A, or whether a system uses plusses or minuses (i.e. A+ or B-), among other differences.

An alternative to the letter grading system

Letter grades provide an easy means to generalize a student's performance. They can be more effective than qualitative evaluations in situations where "right" or "wrong" answers can be easily quantified, such as an algebra exam, but alone may not provide a student with enough feedback in regards to an assessment like a written paper (which is much more subjective).

Although a written analysis of each individual student's work may be a more effective form of feedback, there exists the argument that students and parents are unlikely to read the feedback, and that teachers do not have the time to write such an analysis. There is precedence for this type of evaluation system however, in Saint Ann's School in New York City, an arts-oriented private school that does not have a letter grading system. Instead, teachers write anecdotal reports for each student. This method of evaluation focuses on promoting learning and improvement, rather than the pursuit of a certain letter grade in a course. For better or for worse however, these types of programs constitute a minority in the United States, and though the experience may be better for the student, most institutions still use a fairly standard letter grading system that students will have to adjust to. The time investment that this type of evaluation method requires of teachers/professors is likely not viable on university campuses with hundreds of students per course. As such, although there are other high schools such as Sanborn High School that approach grading in a more qualitative way, it remains to be seen whether such grading methods can be scalable. Until then, more generalized forms of grading like the letter grading system are unlikely to be entirely replaced. However, many educators already try to create an environment that limits the role that grades play in motivating students. One could argue that a combination of these two systems would likely be the most realistic, and effective way to provide a more standardized evaluation of students, while promoting learning.

Antigone - Luke and Owen East Greenwich High School Media Production Lab

A moderated discussion of the play Antigone. Participants: Luke and Owen Created December 2023 as an assignment for Dr. Kenney's 9th grade ELA class at East Greenwich High School in East Greenwich, Rhode Island.

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Assignments Are In: Class of 2024 Billet Night

One of the defining moments in a cadet’s career, Billet Night is the unveiling of a cadet’s first assignment as a Coast Guard officer. Months prior to this ceremony, cadets submit their “dream sheet” of billets, hoping to get their top choice. As cadets approach the stage and receive their envelopes containing their assignments, their energy is electric and comradery undeniable.

“You may now open your billets!”

Whether it’s a Coast Guard cutter, sector or flight school, the billets are opened and cadets cheer as they discover their post-graduation assignments while their classmates erupt with applause.

A dream come true for 1/c Karagan Bulger who received her billet to Naval Flight Training in Pensacola, Florida.

“I feel so lucky and grateful to have this opportunity and I could not have gotten to this point without my parents, sisters, friends, and my entire family!! Both my mom and dad were enlisted in the Coast Guard and are my biggest motivation and inspiration to keep moving forward!! Special shoutout to Air Station Savannah for showing me first-hand this summer what the aviation community is like,” said Bulger, who has been working towards this goal since high school.

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Guardians’ Myles Straw clears waivers, accepts assignment to Class AAA Columbus

• Updated: Mar. 25, 2024, 4:25 p.m. |
• Published: Mar. 24, 2024, 8:58 p.m.

Myles Straw (left), waived by the Guardians, cleared waivers and will start the season at Class AAA Columbus. Carolyn Kaster, AP

• Paul Hoynes, cleveland.com

GOODYEARS, Ariz. -- Myles Straw, as expected, cleared waivers and accepted his outright assignment to Class AAA Columbus.

Straw, who won a Gold Glove for his play in center field in 2022, leaves for Columbus on Monday.

More Guardians coverage

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The Guardians placed Straw on waivers Friday. He went unclaimed and cleared waivers early Sunday afternoon.

During the Bally Sports Greats Lakes broadcast of the Guardians-Reds game on Sunday, they showed Straw and Chris Antonetti, president of baseball operations, talking in the stands at Goodyear Ballpark.

It was a long conversation.

Straw could have declined the outright assignment, but he would have forfeited the $19.25 million left on his five-year $25 million contract that runs through 2026 with club options for 2027 and 2028.

The Guardians acquired Straw from Houston for right-hander Phil Maton and catcher Yainer Diaz in July 2021. Straw hit .285 (68 for 239) after the trade and played great defense in center, which had been a weakness for Cleveland.

Straw, however, went into a serious decline offensively in 2022 and 2023, which led to him being waived.

Manager Stephen Vogt said telling Straw that he was going to be placed on waivers and not make the opening day roster, “Crushed all of us. It’s never fun to hear that news. I’ve heard it a number of times in my career. It was a really rough morning for all of us.”

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Class 9 Physics Assignments

We have provided below free printable Class 9 Physics Assignments for Download in PDF. The Assignments have been designed based on the latest NCERT Book for Class 9 Physics . These Assignments for Grade 9 Physics cover all important topics which can come in your standard 9 tests and examinations. Free printable Assignments for CBSE Class 9 Physics , school and class assignments, and practice test papers have been designed by our highly experienced class 9 faculty. You can free download CBSE NCERT printable Assignments for Physics Class 9 with solutions and answers. All Assignments and test sheets have been prepared by expert teachers as per the latest Syllabus in Physics Class 9. Students can click on the links below and download all Pdf Assignments for Physics class 9 for free. All latest Kendriya Vidyalaya Class 9 Physics Assignments with Answers and test papers are given below.

Physics Class 9 Assignments Pdf Download

We have provided below the biggest collection of free CBSE NCERT KVS Assignments for Class 9 Physics . Students and teachers can download and save all free Physics assignments in Pdf for grade 9th. Our expert faculty have covered Class 9 important questions and answers for Physics as per the latest syllabus for the current academic year. All test papers and question banks for Class 9 Physics and CBSE Assignments for Physics Class 9 will be really helpful for standard 9th students to prepare for the class tests and school examinations. Class 9th students can easily free download in Pdf all printable practice worksheets given below.

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Assignments For Class 9 Chemistry

Assignments for Class 9 Chemistry have been developed for Standard 9 students based on the latest syllabus and textbooks applicable in CBSE, NCERT and KVS schools. Parents and students can download the full collection of class assignments for class 9 Chemistry from our website as we have provided all topic wise assignments free in PDF format which can be downloaded easily. Students are recommended to do these assignments daily by taking printouts and going through the questions and answers for Grade 9 Chemistry. You should try to do these test assignments on a daily basis so that you are able to understand the concepts and details of each chapter in your Chemistry book and get good marks in class 9 exams.

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