Answer:
Free points?!?
Step-by-step explanation:
Answer:D.54
Step-by-step explanation: it takes 20 minutes in the car which is 1/3 of an hr so 42/3= 14 then that leaves 40 minutes left for the train which is 2/3 of 60 and 60/3=20 and 20x2= 40 so 40+14=54
Answer:
an equation with no solution
They can order a 2 course meal 35 different ways
For this, the first thing to do is to assume that the function of temperature with respect to r is written in one of the following ways:
Way 1:

Way 2:

To find the instant variation we must find the derivative of the temperature with respect to the distance r.
We have then:
For function 1:


Rewriting

For function 2:


Rewriting

Answer:
The instantaneous variation of the temperature with respect to r is given by:
Assuming function 1:

Assuming Function 2:
