b) \( \sqrt{7}-2 \) es un \( n^{\circ} \) racional

3. Realizar la grafica de las sigu a) \( y=\frac{1}{x+2} \) b) \( y=\sqrt{x+1} \) c) \( y=\frac{1}{3 x-2} \) d) \( y=2 x+5 \) e) \( y=2 x^{2} \)

For the following equation, a. Write the value or values of the variable that make a denominator zel in mind, solve the equation. \( \frac{2}{5 x}+\frac{1}{4}=\frac{74}{10 x}-\frac{1}{3} \) a. Write the value or values of the variable that make a denominator zero. 0 (Use a comma to separate answers as needed.) b. What is the solution of the equation? Select the correct choice below and, if necessary, fill in the ans A. The solution set is \( \{ \) She solution set is \( \{x \mid x \) is a real number).

3.1.2 4. Calculate \( x \) if \( 2 \sin \left(x-30^{\circ}\right)=\cot 150^{\circ} a n d 0^{\circ} \leq x \leq 360^{\circ} \) 3.1 \( \cos \left(\phi+10^{\circ}\right)=\frac{1}{2} ; \) if \( 0^{\circ}<\phi+10^{\circ}<10^{\circ}<360^{\circ} \) 3.2 Sketch the graphs \( y=\tan x \) and \( y=2 \sin x \) on the same set of axes for the domain \( 10^{\circ} ; 360^{\circ} \). Show clearly on your sketch how to Obtain the values of \( x \) where: 3.2.1 \( \frac{1}{2} \tan x=\sin x \)

i en un salón de clases hay 8 jóvenes que pesos 59 Kg , otros seis que pesan 47 uno que pesa 65 Kg ¿Cuál es el peso promedio en el salón de clases?

función Racional. \( y=\frac{x}{1-x} \)