Solve the problem.If a population is changed by either immigration or emigration, a model for the population is 
where y is the population at time t and f(t) is some function of t that describes the net effect of the emigration/immigration. Assume that k = 0.02 and y(0) = 10,000. Solve this differential equation for y, given that 
A. y = 1050t - 52,500 + 62,500e-0.02t
B. y = -1050t - 52,500 + 62,500e0.02t
C. y = 1050t + 52,500 + 62,500e-0.02t
D. y = -1050t - 52,500 + 62,500e-0.02t
Answer: B
You might also like to view...
Solve the problem.A sports shop sold tennis rackets in 3 different weights, 3 types of string, and 4 grip sizes. How many different rackets could be sold?
A. 10 rackets B. 36 rackets C. 27 rackets D. 24 rackets
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Solve the problem.A church steeple casts a shadow 111 ft long, and at the same time a 8.0-ft post casts a shadow 7.0 ft long. How high is the steeple? Round to the nearest unit.
A. 8 ft B. 112 ft C. 97 ft D. 127 ft
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525