Which value of a would make the following expression completely factored?
x² – a

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?

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?

What makes a trapezoid an isosceles trapezoid?