**Only answers needed, No steps** 1) A thermometer is taken from a room where th

Question

**Only answers needed, No steps**

1) A thermometer is taken from a room where the temperature is 24oC to the outdoors, where the temperature is ?10oC. After one minute the thermometer read 15C

15oC

(a) What will the reading on the thermometer be after 2 more minutes?

(b) When will the thermometer read ?9oC?

2) Biologists stocked a lake with 155 fish and estimated the carrying capacity (the maximal population for the fish of that species in that lake) to be 7000. The number  of fish tripled in the first year.

(a) Assuming that the size of the fish population satisfies the logistic equation

   determine the constant k, and then solve the equation to find an expression for the size of the population after t years.

k=

P(t)=

(b) How long will it take for the population to increase to 3500 (half of the carrying capacity)?

Explanation / Answer

Q no 1

A= -3 c

B =3 min 10 sec

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