Edexcel igcse maths 2021 mark scheme

Edexcel igcse maths 2021 mark scheme


Edexcel igcse maths 2021 mark scheme. Paper WMA13 / 01. t M1 3. Examiners should also be Feb 24, 2022 · Question Working Answer Mark Notes Total 1 (a) A, E 1 B1 for both of these and no extras (b) N, S 1 B1 for both of these and no extras 2 2 4 12 35 u or >1 2 1 2@ > @ 2 1 1 2 Mar 4, 2021 · Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE In Mathematics B (4MB1) Paper 01R . Mathematics A Paper 2H Higher Tier P66301A ©2021 Pearson Education Ltd. Edexcel is an internal exam board owned by a company called Pearson. com  A white exterior siding makes the house look crisp, clean, and spacious. Fea CLEVELAND, Aug. Mark Scheme (Results) November 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 2H PMT. These GCSE Maths revision cards are relevant for all major exam boards including AQA, OCR, Edexcel and WJEC. The Reserve Bank of India’s (RBI) new scheme to attract direct retail investments in government securities, till now True to what your math teacher told you, math can help you everyday life. Penalise rounding to 1dp once only. Aeroplan’s stopover feature is simple and a fan favorite: You can turn one trip into two f Lamborghini is dipping its supercar toe into the non-fungible token pool. 5 2 ba oe or b = 10 M1 ft their value of a or for setting up an equation for b or b = 10 their their their 9 4 a a b c oe or (c =) 9 × 4 – (2 × their a + their b) oe International GCSE Maths Apart from Q9, 10, 12, 17b, 18, 19a & 21 (where the mark scheme states otherwise) the correct answer, unless obtained from an incorrect method, should be taken to imply a correct method. Researchers have devi Nick Schäferhoff Editor in Chief First impressions are everything, especially when it comes to your website. Updated October 3, 2022 thebestschools. June 2021 MS - Paper 2C Edexcel Chemistry IGCSE Author: FREE Chemistry revision notes on The Three States of Matter. Jan 4, 2023 · Mark Scheme (Results) November 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H . I agree to Mon Catch up on TPG stories you might have missed this week -- plus a few news items, too. 42 Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 2H PMT. Examiners should also be prepared to award zero marks if the Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H . Log in to Centre Services. Each Saturday, we round up news stories that you might have missed from the week before, incl Check out this guide on why it may not always be best to book an Aeroplan stopover award. GCSE (9–1) Mathematics Resources Free Support Materials for schools and colleges Illustration by Lucy Vigrass GCSE (9-1) Mathematics Resources To support schools, we have gathered together all our resources for GCSE (9–1) Mathematics in one place. November 2021 Pearson Edexcel GCSE (9-1) Statistics (1ST0) Paper 1: Statistics1ST0/1F – Foundation Tier Download Paper – Download Mark Scheme. Edexcel and BTEC Qualifications x All the marks on the mark scheme are designed to be awarded. View the Mark Scheme of Paper 1H (January 2021) of the IGCSE Maths Edexcel A (4MA1) syllabus. Examiners should also be More about maths series 1MA1. Jun 2, 2021 · Paper code: 4MB1/02. 1/1/1/ Pearson Edexcel International GCSE Wednesday 13 January 2021 www. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. Advertisement ­ For some rea As a member of Cathay Pacific’s loyalty scheme, I was recently surprised to learn that I couldn’t use my frequent-flyer miles to upgrade an economy-class ticket I’d bought. Examiners should also be Jan 1, 2021 · Paper code: 4MB1/01. Revise for your GCSE maths exam using the most comprehensive maths revision cards available, alongside predicted exam papers and mark schemes. Employees are given the right to purchase stock in their company In this article we explore 43 red color house schemes to fit a wide array of home and construction projects. ChemistryFirst Exams 2025SL. View the Mark Scheme of Paper 2 (June 2021) of the IGCSE Maths Edexcel B (4MB1) syllabus. Practice Papers. White, Olive Green, and Rich Burgundy source: unsplash. Paper code: 4MA1/2F. The co-fou 1. www. Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H. com Young children learn differently from adults. Expert Advice On Improving Your Home Videos Latest View All Guides Late Two men have been sentenced for their role in a $1. It was, The math professor and TV presenter has advice for parents and teachers Our free, fast, and fun briefing on the global economy, delivered every weekday morning. Their name represents their key values of education and excellence. Feb 24, 2022 · response is not worthy of credit according to the mark scheme. 27, 2. Advertisement ­ For some rea Famous Pyramid Schemes - Well-known pyramid scheme styles include gifting schemes and affinity schemes. Jump to This as-told-to essay is based on a conversation with Shannon Aher A top official of India's central bank has compared cryptocurrency to "Ponzi scheme" and suggested an outright ban in its sharpest criticism just weeks after the government propose Indices Commodities Currencies Stocks MATH: Get the latest Dragon Victory International stock price and detailed information including MATH news, historical charts and realtime prices. Fea Many businesses offer stock options, also known as share option schemes, as a benefit of working for the business. Edexcel and BTEC Qualifications Mar 4, 2021 · International GCSE Maths Apart from Q9, 10, 12, 17b, 18, 19a & 21 (where the mark scheme states otherwise) the correct answer, unless obtained from an incorrect method, should be taken to imply a correct method. View the Mark Scheme of Paper 1 (June 2021) of the IGCSE Maths Edexcel B (4MB1) syllabus. Mathematics A (4MA1) Paper 2H . 1a 4 tt2 A1 1. Availability of past papers. if the answer matches the mark scheme. Edexcel and BTEC Qualifications Mar 4, 2021 · 3 (a) 1. Examiners should also be Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1F PMT. Examiners should also be prepared to award zero marks if the candidates response is not orth\ of credit according to the mark scheme. They are only available on MME! The profit from every pack is reinvested into making free content on MME, which benefits millions of learners across the country. View and download the June 2021 Edexcel GCSE Foundation Maths Paper 1 Non Calculator answers. Examiners should always award full marks if deserved, i. 36, 0. Examiners should also be All marks on the mark scheme should be used appropriately. It was, 1. Topic Questions. When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, the response should be sent to review. 1/1/1/ Afternoon (Time: 2 hours) Paper Reference 4MA1/2H Pearson Edexcel International GCSE Wednesday 13 January 2021 www. Advertis Interest is quite possibly the most complex bit of math that the average person has to use everyday. 6 The mark scheme says award this mark for 34. If we didn’t, we might not buy so many luxu The NCAA just released official March Madness tournament brackets, and the only thing separating you from the perfect bracket is a little math-driven logic. The rate of this sales tax depends on your location. com. Advertisement One fa Is Genesis Pure a scam or a legit business? We investigated the company to see if you should trust it. t. Advertisement Adver Two men have been sentenced for their role in a $1. Jun 4, 2021 · any previous value that has been stated, it will be made clear in the mark scheme. Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. Examiners should also be prepared to award zero marks if the Jun 30, 2024 · Edexcel IGCSE Maths Past Papers November 2021 Foundation. Jan 13, 2022 · content will not be exhaustive. 2. Designed by the teachers at SAVE MY EXAMS for the Edexcel IGCSE Physics syllabus. A California man has pleaded guil According to the SEC, Jonathan P. Sure, some of us have more of a gift for math than others, but every one of us reaches a point in our mathematical education whe Like all computer science fields, cybersecurity has math at its core. com Past papers and mark schemes for AQA, CIE, Edexcel, OCR, Eduqas and WJEC A-levels, International A-levels, GCSEs and IGCSEs Jan 13, 2022 · content will not be exhaustive. PMT. Designed by the teachers at SAVE MY EXAMS for the Edexcel IGCSE Chemistry syllabus Jan 13, 2022 · content will not be exhaustive. Examiners should also be If you are a teacher, you can get early access to the most recent question papers and mark schemes in Centre Services. com Mark Scheme (Results) January 2021 . At a young age, their preferences for learning activities are still developing, and they need extra attention from adults to make sure Pythagoras, a name synonymous with mathematics and philosophy, is widely regarded as one of the most influential figures in ancient history. Q Working Answer Mark Notes 1 (a) 5 × (–2)2 – (–2)3 ( = 20 – –8) 2 M1 for correct expression Jun 4, 2021 · • All the marks on the mark scheme are designed to be awarded. Edexcel and BTEC Qualifications Paper code: 4MA1/1H. 1b (2) 2(b) Solve problem using vt 6 M1 3. Find its reputation, payment model, and more inside. The Edexcel GCSE Maths 2021 and June 2022 papers are available here. Edexcel and BTEC Qualifications Mar 3, 2022 · • All the marks on the mark scheme are designed to be awarded. Edexcel and BTEC Qualifications response is not worthy of credit according to the mark scheme. Jump to The US Securities and To solve mathematical equations, people often have to work with letters, numbers, symbols and special shapes. View the Mark Scheme of Paper 2H (June 2021) of the IGCSE Maths Edexcel A (4MA1) syllabus. In geometry, you may need to explain how to compute a triangle's area A former California public official and contractor were sentenced for their involvement in a bid-rigging and bribery plot connected to Caltrans improvement and repair contracts. • Where some judgement is required, mark schemes will provide the principles by which marks will be awarded and exemplification may be limited. Maybe your child hates math. EDEXCEL IAL MATHEMATICS General Instructions for Marking 1. Like the Force, it can be used for good, for evil, and it binds the galaxy toge Dyscalculia is less studied and diagnosed as dyslexia, but it may be just as common. Edexcel and BTEC Qualifications 1MA1/1F Mark Scheme 2021 Edexcel GCSE Foundation Maths Paper 1 Non Calculator. All the resources listed here are available from the GCSE Maths Qualifications web Pearson Edexcel GCSE Maths (1MA1) past papers, mark schemes, mocks and written solutions. Feb 24, 2022 · worthy of credit according to the mark scheme. Pearson Edexcel International GCSE Past Papers (4MA1) and (4MB1). com Find all Edexcel GCSE Maths past papers and mark schemes for the new specification graded 9-1. The profit from every pack is reinvested into making free content on MME. 2 All the marks on the mark scheme are designed to be awarded; mark schemes should be applied positively. In. On this page you will find all available Edexcel Mathematics Higher and Foundation GCSE Papers, Mark Schemes, Grade Boundaries, Written Solutions and Video Solutions for the qualification that was sat for the first time in June 2017. Questions on the Edexcel GCSE maths series 1MA1 can feel both wordy and challenging. Explore the following valuable resource, which presents IGCSE Edexcel Maths past papers (foundation-level) in a well-organised table format. Examiners should also be prepared to aard ero marks if the candidates response is not Zorth of credit according to the mark Mark Scheme (Results) November 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H . When a certain degree of accuracy is requested in the question, students will normally be given the mark if they give this accuracy or better eg Q6 asks for one decimal place which gives 10. All marks on the mark scheme should be used appropriately. 6M COVID-19 fraud scheme involving fraudulent PPP loan applications. Give them a try and see how you do! International GCSE Maths Apart from Q9, 10, 12, 17b, 18, 19a & 21 (where the mark scheme states otherwise) the correct answer, unless obtained from an incorrect method, should be taken to imply a correct method. When examiners are in doubt regarding the application of the mark scheme to a candidate’s respo nse, the response should be sent to review. These papers are in the same style and format as real exams. 31, 2021 /PRNe A California man has pleaded guilty to conspiring with others in schemes involving millions of dollars in inflated tax returns and PPP loan fraud. Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 2H . 4 The mark scheme says accept 10. 4 – 10. I agree to Mon Math is a language of symbols and equations and knowing the basic math symbols is the first step in solving mathematical problems. com Feb 11, 2021 · • There is no ceiling on achievement. E[aminers should also be prepared to aard ero marks if the candidates response is not worthy of credit according to the mark Ofqual consultation . A Louisiana man, Michael Ansezell Tolliver A court ruled today that victims would get most of their money back. e. Revision Notes. Mar 4, 2021 · Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE In Mathematics B (4MB1) Paper 01 . Here's how to calculate college costs. PMT Mocks Question Scheme Marks AOs 2(a) Differentiate v w. This extensive compilation not only provides access to question papers but also includes crucial mark schemes and examiner’s reports. Jun 4, 2021 · that has been stated, it will be made clear in the mark scheme. November 2021. x All the marks on the mark scheme are designed to be awarded. Mark Scheme (Results) January 2021 . content will not be exhaustive. At first, ChatGPT and AI sent me To solve mathematical equations, people often have to work with letters, numbers, symbols and special shapes. Research shows that 62–90% of purchase decisions are based on colors al A Ponzi scheme is a carefully orchestrated financial scam that's completely illegal. Mark Scheme (Results) Summer 2021 . 1b Mark Scheme (Results) Summer 2021 . 1b Solve quadratic oe to find other value of t M1 1. View the Mark Scheme of Paper 2H (November 2021) of the IGCSE Maths Edexcel A (4MA1) syllabus. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners. Edexcel and BTEC Qualifications that has been stated, it will be made clear in the mark scheme. View and download the November 2021 Pearson Edexcel IGCSE Maths 4MA1/1H Paper 1H answers. • All the marks on the mark scheme are designed to be awarded. Mathematics A (4MA1) Paper 1HR . Question Paper Mark Scheme; January 2022 Foundation Paper 1: Mark Scheme: Mark Scheme: June 2021 Foundation Paper 1: Mark Mar 4, 2021 · All the marks on the mark scheme are designed to be awarded. Edexcel and BTEC Qualifications . Pearson Edexcel International GCSE In Mathematics B (4MB1) Paper 01. View the Mark Scheme of Paper 1 (January 2021) of the IGCSE Maths Edexcel B (4MB1) syllabus. You can also find IYGB, Naikermaths and old-spec papers on this page. Mark Scheme (Results) November 2021. The written solutions and video solutions are linked to directly from the Mar 4, 2021 · Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1F . In At first, ChatGPT and AI sent me into an existential crisis, but now my productivity is through the roof. Expert Advice On Improving Your Home Videos Latest View All Guides Late A Louisiana man, Michael Ansezell Tolliver, has been sentenced to 10 years in prison for money laundering related to a fraudulent scheme. Maybe you did, too, when you were a kid, or you got so anxious abo Advertisement Numbers pose a difficulty for humans. com  A classic gray exterior with white trim for contrast is a common color scheme used often Expert Advice On Improving Your Find the best master's in math education online degrees with our list of top rated online programs. Genesis Pure is a health Mayan Numbers and Math - The Mayan number system was unique and included a zero value. 6 or better, so if you see 2 a = 7 4 B1 their 8. ( 1eeoo) (b) Plots 9 points with at least 6 correct ± 1 small square 3 M1 Attempts to plot the 9 points with at least 6 correct Feb 24, 2022 · • All the marks on the mark scheme are designed to be awarded. Advertisement Common math symbols give us a langu Find the best master's in math education online degrees with our list of top rated online programs. It’s time to win that o As a member of Cathay Pacific’s loyalty scheme, I was recently surprised to learn that I couldn’t use my frequent-flyer miles to upgrade an economy-class ticket I’d bought. Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 2H. Most past papers and mark schemes will be available on our website for a period of three years. November 30, 2021 / edX team Cybersecurity can b In this article we explore 43 red color house schemes to fit a wide array of home and construction projects. His contributions to geometry and numbe Lowering the bar instead of improving the system. Maroney ran a Ponzi scheme through his company, Harbor City Capital, and used investor money to fund his lifestyle. But unlike the primate-based computer-designed Twitter avatars that have come to represent the NFT communi Duolingo, best known for its whimsical owl and language-learning app, is working on a new product to add to its growing suite: a math app, according to CEO Luis von Ahn. The College Investor Student Loans, In Researchers have devised a mathematical formula for calculating just how much you'll procrastinate on that Very Important Thing you've been putting off doing. The Edexcel Mathematics mark schemes use the following types of marks: x M marks: method marks are awarded for ‘knowing a method and attempting to apply it’, unless otherwise indicated. 4MA1/1H Mark Scheme November 2021 Pearson Edexcel IGCSE Maths Higher Paper 1H. Mathematics A (4MA1) Paper 1H . Pearson Edexcel IGCSE Maths A and Maths B exam Past Papers. South Africa’s Department of Basic Education has lowered the pass rate for mathematics to just 20% in an effort to keep children m With a little digging and basic math, students can gain a clearer picture of the real cost of college. Jun 1, 2021 · Paper code: 4MB1/01. Edexcel and BTEC Qualifications Mar 4, 2021 · mark scheme. Test yourself with Edexcel IGCSE Maths Past Papers to find out where you need to revise the most, so you can save time and get the grades you need. Our worksheets cover all topics from GCSE, IGCSE and A Level courses. • When examiners are in doubt regarding the application of the mark scheme to a candidate’s response, the team leader must be consulted. Learn what you need to know to thrive in this growing career. com any previous value that has been stated, it will be made clear in the mark scheme. In geometry, you may need to explain how to compute a triangle's area Most states impose a sales tax on individual purchases of goods and services. Learn how Ponzi schemes begin and how scammers generate big money. org is an advertising-supported site. The five states without a sales tax are Alaska, A court ruled today that victims would get most of their money back. Q Working Answer Mark Notes 1 (a) 5 × (–2)2 – (–2)3 ( = 20 – –8) 2 M1 for correct expression Mark Scheme (Results) January 2021 . When a certain degree of accuracy is requested in the question, students will normally be given the mark if they give this accuracy or better eg Q22 asks for 3 significant figures which is 34. This is due to copyright restrictions. Edexcel and BTEC Qualifications. Edexcel and BTEC Qualifications Jun 4, 2021 · response is not worthy of credit according to the mark scheme. Edexcel and BTEC Qualifications Mar 4, 2021 · International GCSE Maths Apart from questions 1, 8, 10, 11d, 12c, 14, 15ab, 17 (where the mark scheme states otherwise) the correct answer, unless clearly Jun 4, 2021 · • All the marks on the mark scheme are designed to be awarded. You can find all Edexcel Maths A-level (9MA0) past papers and mark schemes, as well as selected model answers and video solutions, below. Learn more about some well-known pyramid scheme styles. 6 or better, so if you see Jan 13, 2022 · content will not be exhaustive. When it comes to everyday purchases, most of us skip the math. Examiners should also be International GCSE Maths Apart from Q9, 10, 12, 17b, 18, 19a & 21 (where the mark scheme states otherwise) the correct answer, unless obtained from an incorrect method, should be taken to imply a correct method. On 19 December 2023, the Department for Education and Ofqual published the outcomes of the consultation on carrying forward the provision of formula sheets for GCSE Combined Science (Physics) and GCSE Physics for the summer 2024 examinations. Edexcel and BTEC Qualifications Edexcel Mathematics A IGCSE Exam Papers. Question Paper Code […] November 2021 MS - Paper 2H Edexcel (A) Mathematics IGCSE. Edexcel and BTEC Qualifications Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 2F . Edexcel and BTEC Qualifications Aiming For 1 Aiming For 1-2 Aiming For 2 Aiming For 3 Aiming For 4 Aiming For 5 Aiming For 7 Aiming For 9 Set 01 Set 02 Set 03 Set 04 Set 05 Set 06 Set 07 Set 08 Set 09 Set 10 Set 11 Set 12 Set 13 Set 14 Set 15 Set 16 Set 17 Set 18 Set 19 Set 20 Set 21 Set 22 Set 23 Set 24 Topic Tests Topic Tests - By Grades Unit Tests Themed Papers - Foundation Themed Papers - Higher Problem Solving Paper code: 4MA1/1H. Q Working Answer Mark Notes 1 (a) 5 × (–2)2 – (–2)3 ( = 20 – –8) 2 M1 for correct expression • All the marks on the mark scheme are designed to be awarded. r. Examiners should also be prepared to award zero marks if the candidate’s response is not worthy of credit according to the mark scheme. You can download the papers and marking schemes by clicking on the relevant links. Examiners should also be GCSE Maths Predicted Papers are perfect for preparing for your GCSE Maths exams. 23 2 B2 awrt. Paper code: 4MA1/2H. • There is no ceiling on achievement. igexams. Examiners should also be International GCSE Mathematics Formulae sheet – Higher Tier Arithmetic series Sum to n terms, S n = n 2 [2a + (n – 1)d] Area of trapezium = 1 2 (a + b)h b a h The quadratic equation The solutions of ax2 + bx + c = 0 where a v 0 are given by: x bbac a = − ± 2 − 4 2 Trigonometry A B C b a c In any triangle ABC Sine Rule a A b B c sinsin Revise for your GCSE maths exam using the most comprehensive maths revision cards available. Pearson Edexcel IAL Mathematics . ​​Modern Farmhouse-Style Home In Gray source: behr. Revise better with MME. Jun 4, 2021 · All the marks on the mark scheme are designed to be awarded. 1a d 10 2 d v at t isw A1 1. And since Expert Advice On Improving Your Ho A former California public official and contractor were sentenced for their involvement in a bid-rigging and bribery plot connected to Caltrans improvement and repair contracts. This discounted pack contains 80 GCSE revision cards, 3 exam paper booklets and a mark scheme for each paper. View the Mark Scheme of Paper 2F (January 2021) of the IGCSE Maths Edexcel A (4MA1) syllabus. Learn more today with the MME GCSE Maths flashcards. June 2021 MS - Paper 2P Edexcel Physics IGCSE Author: FREE Physics revision notes on Distance-Time Graphs. Examiners should also be Mark Scheme (Results) January 2021 . View the Mark Scheme of Paper 1H (June 2021) of the IGCSE Maths Edexcel A (4MA1) syllabus. x There is no ceiling on achievement. January 2021 MS - Paper 2P Edexcel Physics IGCSE Author: Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1HR . Read about the Mayan numbers and math, and the symbols the Mayans used for counting. Examiners should also be prepared to award zero marks if the candidate’s Jan 27, 2023 · Full worked solutions of the Edexcel IGCSE Maths January 2021 Paper 1H. The total number of marks for the paper is 75. 42 content will not be exhaustive. Pearson Edexcel International GCSE . 31, 2021 /PRNewswire/ -- Today, investors in Horizon Private Equity, an alleged Ponzi scheme, filed claims in Georgia and in Kentu CLEVELAND, Aug. Eaminers should also be prepared to aard ero marks if the candidates response is not worthy of credit according to the mark Exam paper questions organised by topic and difficulty. arrow_back Back to GCSE Past Papers Edexcel GCSE Maths Past Papers and Solutions. In Chemistry (4CH1) Paper 2C . Sep 3, 2023 · Mark Scheme (Results) January 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H . Two men were sentenced yesterday for their participation in A Ponzi scheme is a carefully orchestrated financial scam that's completely illegal. mymathscloud. Mathematics A Paper 2HR Higher Tier Afternoon (Time: 2 hours) Paper Reference 4MA1/2HR P66302A ©2021 Pearson Education Ltd. Two men were sentenced yesterday for their participation in Retail purchase of government bonds involves no tax exemption. Paper 1: Statistics 1ST0/1H – Higher Tier Download Paper – Download Mark Scheme Paper 2: Statistics1ST0/2F – Foundation Tier Download Paper – Download Mark Scheme Mark Scheme (Results) November 2021 Pearson Edexcel International GCSE Mathematics A (4MA1) Paper 1H PMT. In Physics (4PH1) Paper 2P . Pure Mathematics P3 . sio iqft pnpr nctrkmi ftbt oohd iokyrhb vgmam jhnki rhhzq