exam Maths Puzzle Numerical Ability

All of the angles of a quadrilateral are congruent. Can the quadrilateral be a parallelogram? Explain.

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exam Other Question

The Knox Valley investment club invested $9000 at 7.8% annual simple interest. How much additional money should they invest at an annual simple interest rate of 5.1%, so that the t If the distance from point P(x,y) to point (-3,1) is added to the distance from P to point (1,1) the sum is 6. Find the equation for all such points (x,y)