For this case we have the following equation:

The variables are:
t: time in hours
d (t): distance traveled in miles.
We evaluate the distance traveled after 4 hours.
So we have that for t = 4:
Answer:
d (4) = 68
This means that after 4 hours Joanna cycled for 68 miles total
Answer: B) 0
Step-by-step explanation:
1. When you add complex numbers you must add the whole parts and then the imaginary parts.
2. One of the properties of complex numbers is called "Additive identity" which is represented by:

3. Then, for the complex number
, you have:

4. Therefore, the answer is the option B.
Answer:
-1
Step-by-step explanation:
The product of these slopes is -1 ... when dealing with perpendicularity
Answer:
Yes it is correct because the corresponding lines are all together.
sorry if i was wrong this is how i did mine and got 100% on the question.