1,334 prompts matching "Teach me solving a linear and a quadratic equation by substitution"
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WAEC Prep: Friction, and the direction in which it acts
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Practice: Limiting friction, and the greatest value it can reach
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WAEC Prep: The moment of a force about the foot of a pole
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WAEC Prep: The moment of a weight about a hinge
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WAEC Prep: Calculating a moment as force times perpendicular distance
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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WAEC Prep: The total moment of two forces about the same point
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Quiz: The point about which the total moment of a set of forces vanishes
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WAEC Prep: The triangle of forces and concurrence taken together
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Quiz: A rod resting against a wall, and the concurrence of its three forces
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WAEC Prep: The statement of Lami's theorem
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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WAEC Prep: The variance of a discrete random variable
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WAEC Prep: A random variable, and the values it may take
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Explain Back: A probability distribution table for a discrete random variable
I have just studied a probability distribution table for a discrete random variable in my
WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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WAEC Prep: The Poisson formula, and what lambda stands for
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WAEC Prep: Comparing the mean with the variance of a binomial distribution
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WAEC Prep: The mean of a binomial distribution as np
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