Let Q represent a mass of carbon 14 (14C) (in grams), whose half-life is 5715 years. The quantity of carbon 14 present after t years is given by the following. Q = 13

1
2
t/5715

(a) Determine the initial quantity (when t = 0).
g

(b) Determine the quantity present after 2000 years. (Round your answer to two decimal places.)
g

(c) Sketch the graph of the function over the interval t = 0 to t = 10,000.

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?