755 prompts matching "The z-score of a value that lies below the mean"
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IGCSE Additional Maths Y10: The range of values of x that satisfies a stated condition — Common Mistakes
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Explaining why a^1/n means the nth root of a
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Estimating the value of a surd
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Worked Example: The critical values of a quadratic inequality
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Learn: What the modulus of a number means
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IGCSE Additional Maths Y10: The greatest or the least value of a quadratic — Explain It Back
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IGCSE Additional Maths Y10: The value of m for which y equals mx plus c is a tangent — IGCSE Exam Practice
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IGCSE Additional Maths Y10: The restriction that the argument of a logarithm must be positive — Common Mistakes
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Sum of the first n odd numbers
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Finding the equation of a line parallel to the x-axis or y-axis through a point
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Common Mistakes: Expanding the product of two surd brackets
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Quiz: Rationalising a denominator of the form one over root 3
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Common Mistakes: Rationalising a denominator of the form root a over root b
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Learn: The conjugate of a compound surd expression
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Quiz: Rationalising a denominator of the form one over 2 plus root 3
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Common Mistakes: Rationalising when both terms of the denominator are surds
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Common Mistakes: Subtraction as an example of neither law
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Learn: What it means for one operation to distribute over another
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Quiz: The law for dividing powers of the same base
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Show All Working: Simplifying an expression that mixes the index types
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