exam Maths Puzzle Numerical Ability

Find one set of polar coordinates for the point given in rectangular coordinates. The equation is {{{(2,-3)}}}.

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exam Other Question

The difference when 7 less than a number is subtracted from twice the number is 12. What is the number A car purchased in 1998 is currently valued at $12000. If it has decreased in value exponentially at a rate of 4% per year, determine the original cost of the vehicle.