Unit I Review/Study Guide
... factor rainbow can be used to check whether a list of factors is correct. prime number: A whole number that has exactly two factors: itself and 1. For example, 5 is a prime number because its only factors are 5 and 1. ...
... factor rainbow can be used to check whether a list of factors is correct. prime number: A whole number that has exactly two factors: itself and 1. For example, 5 is a prime number because its only factors are 5 and 1. ...
Factors and multiples 10a Square numbers 10b
... 2 List all the factors of these numbers. a 3 b 4 c 10 d 18 e 25 3 True or false? Explain each answer. a 38 is an even number b 85 is a multiple of 5 c 4 is a factor of 34 d 72 will divide by 3 exactly. 4 Gemma wins £68.43 on the lottery. She decides to give an equal share to each of her three childr ...
... 2 List all the factors of these numbers. a 3 b 4 c 10 d 18 e 25 3 True or false? Explain each answer. a 38 is an even number b 85 is a multiple of 5 c 4 is a factor of 34 d 72 will divide by 3 exactly. 4 Gemma wins £68.43 on the lottery. She decides to give an equal share to each of her three childr ...
2011 competition solutions - part i
... Apply Vieta’s Theorem again to get the desired polynomial is x2 + 13x + 17. Method 2: One can imagine that increasing the roots both by 1 is the result of shifting the graph of y = x2 + 15x + 31 rightward by 1. Thus, the desired polynomial is (x-1)2 + 15(x-1) + 31 = x2 – 2x + 1 + 15x – 15 + 31 = x2 ...
... Apply Vieta’s Theorem again to get the desired polynomial is x2 + 13x + 17. Method 2: One can imagine that increasing the roots both by 1 is the result of shifting the graph of y = x2 + 15x + 31 rightward by 1. Thus, the desired polynomial is (x-1)2 + 15(x-1) + 31 = x2 – 2x + 1 + 15x – 15 + 31 = x2 ...