the least squares best fit line for the number of years in college X and the income level Y is y=11.9 + 3.46X Given that standard errors of X and Y are Sx =1.8 and Sy= 7.2, what is the correlation coefficient

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

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.