exam Maths Puzzle Numerical Ability

Using only 5's and any combination of the four operations (+ - x division) write a mathematical expression that results in each of the folllowing quantities: 0,2,3,4,5. Be sure to

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exam Other Question

x2 ((squared)) + 7x+10 = 0 if density of gold is 19.3g/mL and the density of silver is 10.5g/mL devise and experiment to determine the metal in each object