What are the exact solutions of x2 − x − 4 = 0? a. x = the quantity of negative 1 plus or minus the square root of 15 all over 2 b. x = the quantity of 1 plus or minus the square root of 15 all over 2 c. x = the quantity of 1 plus or minus the square root of 17 all over 2 d. x = the quantity of negative 1 plus or minus the square root of 17 all over 2 which is it? 59 points and brainliest answer to the one who get it right.

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

This is so hard and it’s for a test

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.