Plz i need ! if x2 = 20, what is the value of x? ±square root of 10 ±square root of 20 ±10 ±40 plz answer correct and !

What number should be added to both sides of the equation to complete this square? x^2-10x=7

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

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.