Show that the product of the roots of a quadratic equation
is с/a

Franco wants to double the volume of the cone. what should he do?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.