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Maths Puzzle
Numerical Ability
The perimeter of a rhombus is 36 cm. Find the area of the rhombus if one of its angles measures 30 degrees.
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Please help me solve for A: 2A/3=8+4A? Thanks
1)simplify 3(2x+1)-3(x-1)(x+1)
2) If 2x+1=3 and 2x^2-5x-3=24, what does x-3 equal? (plz explain)
3)find k so that x^2-kx+25 is a perfect square (Explain plz)
4)what sho