1,483 prompts matching "Why the interpolation formula gives only an estimate"
Practice set: The logarithm of one, and of the base itself
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Practice set: Using antilogarithms to return to the number
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Practice set: The empty set and the universal set
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Worked example: The formula for the number in a union
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Practice set: The truth table for conjunction and disjunction
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Practice set: Changing the subject when the letter is inside a bracket
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Word problem: Substituting after rearranging, rather than before
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WAEC pitfalls: Applying an inverse operation to only part of a side
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Nigerian scenario: Rearranging a formula from Nigerian trade or building
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Teach me: Why completing the square works
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Spot my mistake: Deriving the quadratic formula
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Worked example: Substituting into the quadratic formula carefully
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Word problem: The discriminant and the number of roots it predicts
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WAEC pitfalls: Dropping the plus-or-minus from the formula
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Practice set: The angle subtended at the centre by an arc of stated length
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Practice set: The radius of a sector from its area and angle
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Practice set: The volume of a cone and of a pyramid
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Word problem: The surface area of a sphere and of a hemisphere
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Word problem: The density and mass of a compound solid
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Practice set: A tally chart and the frequency table it builds
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