Write two fractions where the lcd is 20, but the product of the denominators is not 20.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?