Distance = 400 mi
Speed = 55 mi/h
time = Distance / Speed = 400 / 55 ≈7.27 hours.
They need to travel at least 7.27 hours a day.
Hope this helps.
Answer:
Dear user,
Answer to your query is provided below
Inverse is 3√(x-25)
Step-by-step explanation:
Explanation of the same is attached in image
Answer:
1. A relation
2b. Continuous
Step-by-step explanation:
1: A relation is any set of ordered pairs. A function is a set of ordered pairs where there is only one value for every value.
2b: Continuous if the values belonging to the set can take on ANY value within a finite or infinite interval. A set of data is discrete if the values belonging to the set are distinct and separated.
Answer:
Step-by-step explanation:
The rate of change in the temperature T of coffee at time t is written as 
(remember derivatives are used to express rates of change, and in our case the rate of change of the temperature T). The difference between the temperature M of the air at time t, and the temperature T of the coffee at time t can be expressed as 
Saying that the rate of change in the temperature T is proportional to the difference between M and T is just a way of saying that the rate of change in the temperature T is equal to the difference between M and T, multiplied by some constant k (whose value we don't know, but still that's what it means).
Therefore we get
So first you would substitute j and k in the expression.
7(0.5)+5-8(0.25)
3.5+5-2
It would equal 6.5
Hope this helps!
