Qf q5.) use the exponential decay model for carbon-14 to estimate the age of the paintings.

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

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?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?