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Other Math Archive: Questions from October 14, 2022

• please solve this problem step by step
  \( \left\{\begin{array}{c}u_{t t}=c^{2}\left(u_{x x}+u_{y y}\right), 0
  1 answer

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  (1 point) Find an explicit general solution for 1) \( y^{\prime}=\frac{15}{x} \Rightarrow y= \) \( +C \) 2) \( y^{\prime}=-6 \sin x+4 \cos x \Rightarrow y= \) 3) \( y^{\prime}=-8 e^{x} \Rightarrow y=
  2 answers
• PLEASE do not skip any step, they are both together 1. Consider the following alternatives A and B. Assume that alternative A will be replaced at the end of its useful life with equipment with identic
  Considera las siguientes alternativas A y B. Asume que la alternativa A será reemplazada al final de su vida útil con un equipo con idénticos costos y beneficios. Usa análisis de valor Presente co
  2 answers
• A savings account advertises that it pays an APR (nominal interest) of 12 percent per year compounded monthly. a) How much is the interest rate compounded per month? b) How much is the annual effectiv
  0 answers
• A savings account advertises that it pays an APR (nominal interest) of 12 percent per year compounded monthly. a) How much is the interest rate compounded per month? b) How much is the annual effectiv
  0 answers
• Solve the homogeneous differential equation y''' + 2y' + 4y' +8y = 0
  4) Resuelva la ecuación diferencial homogénea \( y^{\prime \prime \prime}+2 y^{\prime \prime}+4 y^{\prime}+8 y=0 \)
  2 answers

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  Considera las siguientes alternativas A y B. Asume que la alternativa A será reemplazada al final de su vida útil con un equipo con idénticos costos y beneficios. Usa análisis de valor Presente co
  2 answers

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  [4 Points] BOYCEDIFFEQ10 7.2.008. If \( \mathbf{x}=\left(\begin{array}{c}3 \\ 4 i \\ 1-i\end{array}\right) \) and \( \mathbf{y}=\left(\begin{array}{c}-1+i \\ 3 \\ 4-i\end{array}\right) \), find the fo
  2 answers
• #26 please
  26. \( y^{\prime \prime}-2 y^{\prime}+y=0 ; \quad y(0)=1, \quad y^{\prime}(0)=-2 \) 27. \( y^{\prime \prime \prime}-4 y^{\prime \prime}+7 y^{\prime}-6 y=0 ; \quad y(0)=1, \quad y^{\prime}(0)=0 \)
  2 answers