Quiz about Growth or Decay Rates

Question 1

Growth or Decay? A certain type of bacteria, doubles in population every 6.5 hours. Given that there were approximately 100 bacteria to start with, how many bacteria will there be in a day and a half?

Accepted Answer

Growth

Answer

Decay

Question 2

If y = a(B)^x is a growth then...

Accepted Answer

the base is greater than 1

Answer

the base is less than 1

Answer

the initial value is greater than 1

Answer

the initial value is less than 1

Question 3

Growth or Decay? Increase

Accepted Answer

Growth

Answer

Decay

Question 4

Growth or Decay? The population of HomeTown is 2016 was estimated to be 35,000 people with an annual rate of increase of 2.4%.

Accepted Answer

Growth

Answer

Decay

Question 5

Growth or Decay? Newtons Law of Cooling states that the rate of cooling of an object is

proportional to the temperature difference between the object and its surroundings.

A roast turkey is taken from the oven when tis temperature has reached 185 F

and is placed on a table in a room where the temperature is 75 F.

Accepted Answer

Decay

Answer

Growth

Question 6

Growth or Decay? We are given an equation relating the rate at which electricity is draining from a capacitor and the passage of time. We need to a) solve for V and then b) find how long it will take for the voltage to drop to 10% of its original value.

Accepted Answer

Decay

Answer

Growth

Question 7

Growth or Decay? A biologist is researching a newly-discovered species of bacteria. At time t = 0 hours, he puts one hundred bacteria into what he has determined to be a favorable environment. Six hours later, he measures 450 bacteria.

Accepted Answer

Growth

Answer

Decay

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