Question

In another experiment, Isabella starts with 10 bacteria of the same type, so their population increases by 20% each day. The expression 10(1 + 0.2)d finds the number of bacteria after d days. Which statement about this expression is true?

A) It is the sum of the initial population and the growth factor after d days.


B) It is the product of the initial population and the growth factor after d days.


D) It is the sum of the initial population and the percent increase.


C) It is the initial population raised to the growth factor after d days.

Answer 1

It is the product of the initial population and the growth factor after d days.

Explanation:

Answer 2

Answer: B) It is the product of the initial population and the growth factor after d days.

Step-by-step explanation: Given initial number of bacteria = 10.

Rate of increase = 20% each day = 0.2 .

Expression for finding the number of bacteria after d days is given by

`10(1 + 0.2)^d`, where d is the number of days.

We can see than initial population of bacteria is 10 and 10 is being multiplied with growth factor (1 + 0.2) after d days.

Therefore, correct option is B option.

B) It is the product of the initial population and the growth factor after d days.