This table shows the relationship between the bird population in a habitat and the time, in years, since a researcher began trac
king the bird population. (Determine which statement(s) is/are true.) (more than one can be chosen)
a. the grates increase in the bird population occurred between year 2 and year 3
b. the bird population increased the same amount each year
c. the bird population is always increasing
a. the grates increase in the bird population occurred between year 2 and year 3
b. the bird population increased the same amount each year
c. the bird population is always increasing
2 answers:
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Answer:
(B)
Step-by-step explanation:
Volume of fluid in the tank =1000 gallons
Initial Amount of Salt in the tank, A(0)= 30 pounds
Incoming brine solution of concentration 2 pounds of salt per gallon is pumped in at a rate of 4 gallons per minute.
Rate In=(concentration of salt in inflow)(input rate of brine)
The resulting mixture is pumped out at the same rate, therefore:
Rate Out =(concentration of salt in outflow)(output rate of brine)
Therefore:
The rate of change of amount of salt in the tank,