A report tells us that in 2009, there were 870 gray wolves in Idaho, but that the population declined by 19% that year. For purposes of this problem, we assume that this 19% annual rate of decrease continues. (a) Find an exponential model that gives the wolf population W as a function of the time t in years since 2009. W =        (b) It is expected that the wolf population cannot recover if there are fewer than 20 individuals. How long must this rate of decline continue for the wolf population to reach 20? (Round your answer to two decimal places.)  yr

Q: I have submitted this question 3 times, and am still not getting the right answer, please help.…

A: Given : The population of a certain species of frog grows 15.1% every year , r = 15.1% Therefore,…

Q: Show that a radioactive substance which exponentially decays to 20% of its initial value after 8…

A:

Q: A species of beetles grows 35% every year. Suppose 100 beetles are released into a field. Construct…

A:

Q: In a city of half a million, there are initially 800 cases of a particularly virulent strain of flu.…

A: In a city of half a million, there are initially 800 cases of a particularly virulent strain of flu.…

Q: A report tells us that in 2009, there were 870 gray wolves in Idaho, but that the population…

A: Given that : A report tells us that in 2009, there were 870 gray wolves in Idaho, but that the…

Q: If an account has an APR of 100r% compounded continuously, its annual growth factor is  .    Based…

A: (a) If an account has an APR (Annual Percentage Rate) of 100r% compounded continuously, its annual…

Q: An article on cancer treatment contains the following statement: A 37% 5-year survival rate for…

A:

Q: In 2003, 182 deer were introduced into a wildlife refuge area from which the population had…

A:

Q: Suppose a study is completed that finds that the number of cockroaches in Chandler decreases by 18%…

A: Given information:  Cockroach population decrease by 18% in 12 years.…

Q: An extremely large flywheel in a generator is rotating at 1980 revolutions per minute at full power.…

A: Initial power of flywheel No=1980 rev/min After 8 minutes,N=1564 rev/min

Q: An Asian country had a population of about 0.90 Billion people in 1995 and a growth rate of 1.3% per…

A: *** This is the problem related to financial mathematics and we are advanced math expert and have…

Q: In 2013, the moose population in a park was measured to be 5,600. By 2017, the population was…

A:

Q: If the population of a Nigeria doubles in 9 years, find the growth rate k. Assume that the population…

A: So the equation for the exponential population with growth rate k is given by: Where, A= initial…

Q: A population numbers 19,000 organisms initially and decreases by 2.1% each year. Suppose P…

A:

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.