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Square root of 81?

9X9 = 81

Answered by Laura H. • Maths tutor

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Probability: "Sock Drawer" style questions.

Solve this pair of simultaneous equations: 3x + y= 7 and 3x - y = 5

Show that y=3x-2 and 3y-9x+5=0 are parallel.

5q^2.p^12/10(q.p^3)^2

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