Multiplying brackets Study guides, Revision notes & Summaries

Rational number (aka 'fractional') Numbers that can be expressed as a fraction Integers Solid positive and negative numbers 00:5301:34 Real Numbers A real number is any number that can be placed on the number line, whether that be negative or positive, fraction or decimal. True or False? Any integer is also a whole number. This statement is false. An integer can be negative, such as the number −100-100. −100- 100 is not a whole number. Read all the options before answering. −1...

SOPHIA| College Algebra - Final Milestone with Answers!!| SPRING 2021 You passed this Milestone 23 questions were answered correctly. 2 questions were answered incorrectly. 1 Which of the following equations is correctly calculated? • -2 × -7 = -14 • 81 ÷ -9 = -9 • -36 ÷ 4 = 9 • 4 × 12 = -48 RATIONALE This is correct. The quotient of a positive and negative number is always negative. This is incorrect. The product of two negative numbers is...

Finding the LCM of two numbers when you have the prime factors - - List all the prime factors out - If a factor appears more than once, list it that many times, e.g. 2, 2, 2, 3, 4 and 2, 2, 3, 4 would be 2, 2, 2, 3, 4 - Multiply these together Finding the HCF of two numbers when you have the prime factors - - List all the prime factors that appear in both numbers - Multiply these together Multiplying fractions - Multiply the top and bottom separately Dividing fractions - Turn the second...

GRE Quantitative Reasoning Prep 228 Questions with Verified Answers Even + even = - CORRECT ANSWER even Even - even = - CORRECT ANSWER even Even + odd = - CORRECT ANSWER odd Even - odd = - CORRECT ANSWER odd Odd + odd = - CORRECT ANSWER even Odd - odd = - CORRECT ANSWER even Odd × odd = - CORRECT ANSWER odd Even × odd = - CORRECT ANSWER even Even × even = - CORRECT ANSWER even Least common multiple - CORRECT ANSWER the least positive integer that is a multiple of...

Sophia College Algebra 1. PERFORMING OPERATIONS WITH REAL NUMBERS | MILESTONE 1 You passed this Milestone 18 questions were answered correctly. 3 questions were answered incorrectly. 1 The Elster family drove 9.25 hours on the first day of their road trip. How many minutes is this equivalent to? 9,256 minutes 33,300 minutes 555 minutes 154 minutes RATIONALE In general, we use conversion factors to convert from one unit to another. A conversion factor is a frac...

Sophia College Algebra 1. PERFORMING OPERATIONS WITH REAL NUMBERS | MILESTONE 1 You passed this Milestone 18 questions were answered correctly. 3 questions were answered incorrectly. 1 The Elster family drove 9.25 hours on the first day of their road trip. How many minutes is this equivalent to? 9,256 minutes 33,300 minutes 555 minutes 154 minutes RATIONALE In general, we use conversion factors to convert from one unit to another. A conversion factor is a frac...

AQA GCSE MATHEMATICS 8300/1H Higher Tier Paper 1 Non-Calculator Question Paper + Mark scheme [MERGED] June 2022 *junH01* IB/M/Jun22/E7 8300/1H For Examiner’s Use Pages Mark 2–3 4–5 6–7 8–9 10–11 12–13 14–15 16–17 18–19 20–21 22–23 24–25 26 TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • mathematical instruments • the Formulae Sheet (enclosed). You must not use a calculator. Instructions • Use black...

GCSE Edexcel – Maths EXAM WITH CORRECT ANSWERS A+ Finding the LCM of two numbers when you have the prime factors - CORRECT ANSWERS - List all the prime factors out - If a factor appears more than once, list it that many times, e.g. 2, 2, 2, 3, 4 and 2, 2, 3, 4 would be 2, 2, 2, 3, 4 - Multiply these together to get the LCM Finding the HCF of two numbers when you have the prime factors - CORRECT ANSWERS - List all the prime factors that appear in both numbers ...

HESI A2 60 Questions with Verified Answers 2023 Which of these statements is true regarding the way light travels? A. Sound travels faster than light. B. The speed of light is always the same regardless of the medium through which it travels. C. Light travels as both a wave and a particle. D. Light can not travel through a vacuum. - CORRECT ANSWER C. Light travels as both a wave and a particle. Light is a curiosity in that it acts as both a wave and a particle. It only changes direc...

The graphs of the following equations are drawn: 1. y = 3x - 2 2. y = x^2 3. y = 1 - x^2 4. y = x + 6 3 and 4 An ore of lead contains 70 % of PbS. Calculate the mass of lead that can be extracted from 478k of the ore. (Ar: Pb = 207; S = 32) A - 28.98kg B - 41.4 kg C - 144.9 kg D - 289.8 kg E - 414.00kg Answer: 478 x 0.7 = 334.6 mass of PbS 334.6 / (207+32) = 1.4 = no. of moles of PbS 1.4 x 207 = 289.8 kg = mass of lead Therefore D is the answer. The energy in joules...