A set of average city temperatures in October are normally distributed with a mean of 20.6 degrees Celsius and a standard deviation of 2 degrees Celsius. What proportion of temperatures are between 18 degrees Celsius and 20 degrees Celsius?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

What is the expression in factored form? 3x^2 + 18x + 24 a. 3(x+2)(x+4) b. 3(x-2)(x+4) c. 3(x-2)(x-4) d. 3(x+2)(x-4)

Factor and solve to find roots x squared -x - 90 =0