One added to the square root of the sum of a number and one is equal to four. find the number

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Answer this question! 30 points and brainliest! only if you know the answer.

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .