Answer:
32d
Step-by-step explanation:
-The students ride their bikes to and from school every day. The distance is thus;
-Taking that there are 5 school days per week and that it rains in one per week. the total number of days is:
Now, we multiply the distance per day by the total number of days:
Hence, the total distance in a 4-week period is expressed as 32d ( where d is the distance from home to school).
Answer:
Step-by-step explanation:
The number of bacteria in species A at time t is given by:
.
The number of bacteria in species B at time t is given by
You are asked to find N(t) which is the difference in the species at time t. Difference refers to the answer is a subtraction problem. Thus, we are asked to find N(t) = A(t)-B(t)
We subtract and obtain:
That is,
which is the last answer choice.
With respect to notation, it is common to denote an exponent using ^. So if we want to write
we can write "(.25t)^3"
