13.5 5
A.In the model
W(t) = 350(1.14)t,
W(t) is the number of humpback whales off the coast of Australia t years since 1981. According to this model, when will the whale population reach 15,000?
The whale population will reach 15,000 midway through the year ________.
B.What interest rate compounded continuously do you need to earn to make $8000 double in 8 years? (Round your answer to two decimal places.)
_______%
C.Solve the system of equations by graphing the equations on your graphing calculator. (Round your answers to one decimal place.)
y = 1.4
