The average lifespan of American women has been tracked and the model for the data is f(t)= 0.2t+73, where t=0 corresponds to 1960. Explain the meaning of the y-intercept in this context.
I’ll give brainliest and 25 point please help me out.

What is the solution to the equation in the & show work i’m very

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)