Algebra Archive: Questions from March 23, 2023
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Continuity for Two Variables At what points \( (x, y) \) in the plane are the functions in Exercises 31-34 continuous? 31. a. \( f(x, y)=\sin (x+y) \) b. \( f(x, y)=\ln \left(x^{2}+y^{2}\right) \) 32.3 answers -
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280
\( \frac{2}{2}=\frac{2}{2} \) \[ \frac{70 \mathrm{mi}}{1 \mathrm{hr}}=\frac{1}{70} \] \[ 280 \mathrm{mi} \times \frac{1 h r}{70 m i}= \]2 answers -
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