Answer: it should be the last one !!!
Step-by-step explanation:
-7/4:-1.75
2/5:0.4
-1.75=0.4t
-1.75/0.4=t
-4.375=t
Hope I helped you well, have a victorious day!
In a - 3 = 15, the value of a HAS to be 18.
In a - 3 is greater than or equal to 15, the value of a is any value that is 18 or higher.
For this case we have by definition, that the derivative of the position with respect to time is the velocity, that is to say:

So:
Taking into account that the derivative of a constant is 0.

So, the velocity is -14
Answer:
-14