The amount of Carbon-14 in a wooden spoon found at an archeological site is 2.1 grams. Spoons of this type are known to contain 10 grams of Carbon-14 at their time of creation, and the amount of Carbon-14 years after the creation of this artifact is modeled by . How many years ago was this spoon made?

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Secant be and cf intersect at point d inside a what is the measure of cde