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level: frequency polygons, interior/exteiroir, index laws,depreation

Questions and Answers List

level questions: frequency polygons, interior/exteiroir, index laws,depreation

QuestionAnswer
How are frequency polygons drawn?Frequency polygons are drawn by plotting given frequencies on a graph, then drawing a line of best fit from each frequency
What do you do to factorise an equation?To factorise an equation find two numbers that can be added together to make the first number in the equation, that can also be multiplied to make the second number
What is the equation for interior and exterior angles?Interior angles = 180 (n-2), when n = number of sides And the equation for exterior angles is 360/n, where n = number of sides, and all exterior angles = 360
What are the laws of indices?1^2 x 1^5 – same base – add 1^2 / 1^5 – same base – subtract (2x^5) 4 – integer inside also multiply by Indice 3^2 x 2^-5 = 6^-3 – multiply then add
How do you express 8^k x 3^3k, as a power of 6?Because 8^k and 3^3k do not share the same integer they must be changed to share the integer make them both either X^k or X^3k And because 8 = 2^3, 8^k becomes 2^3k x 3^3k Now because they have the same integer they can be multiplied and = 6^3k – a power of 6
If the compound interest per annum is 5% what do you multiply the input by?If the compound interest per annum is 5% multiply the input by 1.05 because 100% = 5% = 105%