Resuelve: El triple del cuadrado de un número aumentado en su duplo es 85. ¿Cuál es el número?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Is appreciated! graph the functions and approximate an x-value in which the exponential function surpasses the polynomial function. f(x) = 4^xg(x) = 4x^2options: x = -1x = 0x = 1x = 2

If the value of cos330°is√3/2 then find cos 165°.