How do I write a quadratic equation in standard form with given roots, when one or both of the roots are fractions? For example, if the roots were 1 and 1/2 and I put
apparently that's not correct because the coefficients are fractions, but I'm not sure how to fix it.​

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

Which polygon is she in the process of constructing ?