Solve each equation by taking square roots give exact answers inn express in perfect roots in simplified radical form -8x^2+14=0

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Which will form a composite function?

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 .