Aquadratic equation of the form 0=ax^2+bx+c has a discriminant value of 0. how many real number solutions does it have?

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

What is sin 7x/4 ? i need on this urgent trig