4. Red aerial mini-filares are used by some boaters in an emergency. The flight of one brand of flares, when fired the function is modeled by the function () = -16t? +84 +3. How many seconds does
it take for the flare to reach it's maximum height? What is the height reached by the flare after 4
seconds?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?