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Unformatted text preview: y = 4 x + 15 . 4. Determine the rational form p q of the numbers represented by the following decimal expansions. (a) 72.9238 (b) ! 27.62361 3 5. Determine the equation of the line tangent to the graph of y = x 3 + 20 x ! 5 through the point (2, 43) ....
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