What is the discriminant of the quadratic equation -3x^2-9x-1=0? 93
69
-93
-69
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Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Indicate the formula for the following conditions: p^c(n,r)=

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.