Multiplying brackets Study guides, Revision notes & Summaries

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 fractio...

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...

DSC1520 NOTES WITH SOLVED PAST QUESTIONS. Numbers: different type of numbers – Natural, Real, etc. Also called constants • Basic operations o + (add); 2 + 3 = 5 o – (subtract); 3 – 2 = 1 o x (multiply); also •; 3 x 2 = 3•2 = 6 o ÷ (division) also / or fraction ( 1 2 = 1 divide by 2); 6 ÷ 3 = 6/3 = 6 3 = 2 Remember: 1 x anything = anything 1 x 8 = 8 0 x anything = 0 0 x 4 = 0 1 + anything = one more than anything 1 + 345 = 346 0 + anything = anything 0 + 34 = 34 ...

Simplify the following expression in terms of fractional exponents and write it in the form . RATIONALE Radical expressions can be rewritten using fractional exponents by corresponding the index of the radical to the denominator of the fractional exponent. Begin by writing the expression underneath the radical. This entire expression will be raised to a fractional exponent power. The index of the radical is . In other words, this is the fourth-root. This means that the entire expression wil...

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 fraction...

College Algebra - Final Milestone with Answers. 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 always positive. The correct product is 14. CON...

AQA A-LEVEL COMPUTER SCIENCE PAPER 2 MARK SCHEME A-level COMPUTER SCIENCE 7517/2 Paper 2 Mark scheme June Version: 1.0 Final *206a7517/2/MS* Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in an...

HESI A2 Comprehensive Exam with Q&A Correctly Solved 100% 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. ANS- 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 direction...

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...

Expand means multiply out an expression to get rid of the brackets. Exercise 1 1 Multiply out and simplify if possible. a b c d e f g h i j k WORKED EXAMPLES Expand and simplify these expressions. a b Solutions a 3(x + 2y) − (x − 3y) You can write ‘1’ before the second bracket before multiplying out. 3(x + 2y) − 1(x − 3y) Multiply each term inside the brackets by the term at the front of the brackets. Be careful with signs. 3x + 6y − 1x + 3y Collect like terms. ...