exam Maths Puzzle Numerical Ability

Is (sqrtx)2=x an identity (true for all nonnegative values of x)?

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exam Other Question

solve the following inequality for x. Then, describe the one-dimentional graph that you would draw o represent the solution. (Indicate where the line would begin, which way it points, etc.) Show all steps.

-2(x+6)>x+4
In rhombus ABCD with diagonals BD and AC intersecting at E, AB= 13 cm, and AC= 24 cm. Find BD and the area of the rhombus.

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