Um eletricista cobra 50 reais a visita e 75 reais por hora trabalhada. Em uma semana ele recebe reais de pagamento. Trabalhou de segunda a sexta 4 horas por dia. Quanto tempo ele trabalhou sábado?

Find the first partial derivatives of the function. \[ \begin{array}{l}\frac{\partial w}{\partial u}=\frac{e^{v}}{u+v^{6}} \\ \frac{\partial w}{\partial v}=e^{5}+6 v^{5}\end{array} \]

Select all of the following ordered pairs which are a solution to the inequality. \( y<2 x-1 \) Show your work here \( \begin{array}{l}(-3,-7) \\ (2,-4) \\ (0,0) \\ (5,6)\end{array} \)

Make sure to do actions like every \( 4-6 \) lines tho!

En la solución de la siguiente ecuación se hal cometido ênores. Encuéntralos y determina I. solución correcta. \( x^{2}-5 x-24=0 \) \( a=1 \quad b=-5 \quad c=-24 \) \( x=-5 \frac{\sqrt{(-5)^{2}+4(1)(-24)}}{2(1)} \) \( x=\frac{-5 \sqrt{25+96}}{2} \) \( x=\frac{-5 \sqrt{121}}{2} \) \( x=3 ; x=8 \)

Find the ranges of these: (3 Points Each) \( \begin{array}{ll}\# 13:-6 / x^{\wedge} 2 \quad \# 14: 5 /(x+2) \quad \# 15:(x-6) / \sqrt{x+4}\end{array} \)