Which expressions are equivalent to the one below? 16^x / 4^x a. (4^x * 4^x) / 4^x b. 4^x c. (16 / 4)^x d. 4 e. (16-4)^x f. 16^x

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

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?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c