If you do the math you'll get 3/4 of the bag is dirt.
Answer:
The correct set of hypotheses is
: d=80 degrees
: d>80 degrees
Step-by-step explanation:
The weatherman claims that the average temperature during July in Chattanooga is 80 degrees or less. To test this claim, following hypotheses need to be taken:
Let d be the the average temperature during July in Chattanooga, then
: d=80 degrees
: d>80 degrees
If they both do 7 hours, then the price will total out at $55.75 for both. Not sure if you have a formula from your book, but common sense/guestimating gets you that correct answer.
Parameterize the intersection by setting

, so that


The length of the path

is then given by the line integral along

,

where

. We have



and so the line integral is

This result is fortuitous, since we can write

and so the integral reduces to
Explanation:
For reasons unknown, Brainly gets bent by the use of "f(x)". So, an appropriate answer cannot be posted as text. I have posted it as attached pictures.