Check whether (6, 8, 10) is a Pythagorean

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 amplitude of a sinusoidal function that models this temperature variation

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°