Question

The expression below represents the number of bacteria in a petri dish after t hours.

57(1.31)^t
Interpret the meaning of the expression.
A. The initial number of bacteria is 131, and the growth rate is 5.7% per hour.
B. The initial number of bacteria is 57, and the growth rate is 31% per hour.
C. The initial number of bacteria is 131, and the growth rate is 57% per hour.
D. The initial number of bacteria is 57, and the growth rate is 3.1% per hour.

Answer 1

Answer: The answer is B

Explanation:

Answer 2

B

Explanation:

Answer:

9672

Explanation:

Population growth can be represented by the equation
`A=A_0(1+r)^(t)`.

• 
  `A_(0)` is the starting population. Here that is 57.

• r is the rat as a decimal. The rate is 0.31. To convert to a percentage, we multiply by 100. 0.31x100=31%

• t is the number of hours.