What is the value of 8.72 x 10^4 when written in standard decimal notation?
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What is the resultant vector when a vector of magnitude 10 in the positive x-direction is added to a vector of magnitude 5 in the negative y-direction?
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What is the limit of the function f(x) = (3x^2 + 5x + 2)/(2x - 1) as x approaches 2?