3. A causa del fenómeno del niño, se destruyó el puente por desborde del rio Rimac en Chosica. El Alcalde contrata a un topógrafo para medir
el ancho del rio, este realiza las medidas según el gráfico. ¿Cuál es el
ancho del rio?

a) 70 m
b) 75 m
c) 65 m
d) 80 m
m 100m​

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!