20 Los \( \frac{4}{5} \) de la masa del cuerpo humano son de agua. ¿Cuántos kilogramos de agua contiene el cuerpo de una per- sona cuya masa es de 70 kg .?

- Prompt the user for the name of an input file and an output file - Open the input file for reading, and open the output file for writing As mentioned in lecture, there is more than one way to read from a fill, and we'll be discussing several options later on. For this lab, use readl ines. - For each line in the input file: - Compute the average word length for the line - Write to the output file: the line number, followed by a single space, followed by a colon (:) and a single space, followed by the average word length

Find \( \frac{d y}{d x} \) for \( \ln (3 y)=e^{y} \sin (6 x \)

Find the derivative of \( y=23^{x} \)

15) \( \begin{array}{l}6 x+6 y=-6 \\ 5 x+y=-13\end{array} \)

Evaluate \( \frac{-4+3 i}{-3-3 i} \) and express as a simplified complex number \( a+b i \) help (numbers)