There is a research to find the relationship with car retail price (Y) with only horsepower . A sample of 30 data was selected. Here are some output results: df SS MS F Sig F Regression 1 40.5 40.5 81 2.237E-12 Residual 28 14.2 0.5 Total 29 54.7 Coefficient Standard Error T statistic P-value Intercept -56 12.5 5.67 0.00004 Horsepower 195 23.4 9.23 2.237E-12 (a) What is the 90% confidence interval for the slope of Horsepower

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.