Call the surface 
; then the area of is given by the surface integral
Parameterize the surface by
with
and 
. The surface element is given by
So the area is
where
Parameterize the surface by
with
So the area is
where
Which is the equation of the line with slope 3 and y- intercept 5.
2 answers:
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Answer:
square foot per hour
Step-by-step explanation:
The total area covered = 34 square foot
Time taken = 12 hours
This implies that it takes 12 hours to cover 34 square foot.
Using proportionality,
12 hours ---------------------------------------> 34 square foot
Dividing both sides by 12
--------------------------->
1 hour ---------------------------------------> square foot per hour
The unit rate in square feet per hour is square foot per hour