exam Maths Puzzle Numerical Ability

f(x)=234x - 198

x=4 , 2 , 9

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exam Other Question

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do side lengths of 9,12,and 5 units form a right triangle?

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The velocity of a falling object is a linear function of the time t it has been falling. If v = 3 when t = 0 and v = 80 when t = 11, express v as a function of t.