Determine the domain and the range of the relation, and tell whether the relation is a function. \( \{(2,7),(18,-10),(34,7),(2,9),(59,9)\} \) The domain is \( \{\square\} \). (Use a comma to separate answers as needed. Type each answer only once.)

4) El valor de la expresión \( a-a^{2}-a^{3} \) para \( a=2 \) es: a) -10 b) -8 c) -6 d) 14 El valor de \( -10^{2}+(-10)^{2}+10^{0} \) es ional a.

A ladder 20 feet long rests against a wall. If the base of the ladder is being pulled away from the wall at 2 feet per second, calculate the rate at which the top of the ladder is sliding down the wall when the base is 12 feet from the wall.

2) Un objeto tiene una masa de 80.5 g y un volumen de 250 cm ? ¿Cual es la densidad?

05. Se tiene los ángulos adyacentes \( m

13) \( \left(\frac{18}{7}\right)^{-5}:\left(\frac{18}{7}\right)^{-1}= \) a) \( \left(\frac{7}{18}\right)^{-6} \) b) \( \left(\frac{10}{7}\right)^{-6} \) c) \( \left(\frac{7}{18}\right)^{4} \) d) \( \left(\frac{18}{7}\right)^{4} \)