For the equation y=3x^2 - 4x + 11, choose the correct application of the quadratic formula.

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?