Other Math Archive: Questions from April 26, 2023
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Which of the following is not a linear transformation and why? (a) \( T(x, y)=(0, y) \) (b) \( T(x, y)=(y, x) \) (c) \( T(x, y)=(2 x, y) \) (d) \( T(x, y)=(x+1, y) \)2 answers -
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Solve using Laplace transforms: \[ y^{\prime \prime}-5 y^{\prime}-6 y=3 \cos x \] Solve using Laplace transforms: \[ y^{\prime \prime \prime}-2 y^{\prime \prime}+y^{\prime}=2 e^{x}+2 x \]2 answers -
Solve \[ \begin{array}{l} {\left[\begin{array}{l} x^{\prime} \\ y^{\prime} \end{array}\right]=\left[\begin{array}{cc} 6 & 1 \\ -125 & -14 \end{array}\right]\left[\begin{array}{l} x \\ y \end{array}\ri2 answers -
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The average atmospheric pressure formula isP=14.7e-0.21x, P in lb/in2 and x is the height in miles above sea level. Determine the average atmospheric pressure for a height of 3.5 miles. Perform the pr
La fórmula de presión atmosférica promedio es \( P=14.7 e^{-0.21 x}, \mathrm{P} \) en \( \mathrm{lb} / \mathrm{in}^{2} \) y \( \mathrm{x} \) es la altura en millas sobre el nivel del mar. Determine2 answers -
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