Select all that apply Which of the following statements about a procedures manual are true? \( \square \) Once established, the procedures manual should not be changed. \( \square \) Periodic reviews should be conducted to ensure that employees are foliowing the procedures outlined in the manual. \( \square \) Procedures manuals are ineffective in todays fast-paced environment.

9. [Puntuación máxima: 5] Considere las funciones \( f(x)=x-3 \) y \( g(x)=x^{2}+k^{2} \), donde \( k \) es una constante real (a) Escriba una expresion para \( (g \circ f)(x) \). (b) Sabiendo que \( (g \circ \rho(2)=10 \), hrile los posiotes valores do in,

6. \( \sqrt[3]{343}=\square \)

\( \frac { \sin A \cos A - \sin ^ { 2 } \cos ^ { 2 } A } { \sin ^ { 2 } A + \sin A \cos A - \sin ^ { 7 } a \cos A - \cos ^ { 2 } A } = \sin A \)

Find an equation for the line that passes through the point \( (7,1) \) and is perpendicular to the line \( x-3 y+25=0 \)

What law states that the grouping of terms being added or multiplied can be changed?