Answer:
i think its B or D sorry if I'm wrong
Answer:
1.92 miles
Step-by-step explanation:
she had walked 10 miles so that is where you start
Monday she had walked 2.38 so you subtract that from her total
Tuesday she had walked 2.4 so you subtract that from your new total
Wednesday she had walked 3.3 and you subtract that from the new total also
Thursday she had not walked anything so your remaining total is the amount she had walked on Friday
Each curve completes one loop over the interval

. Find the intersections of the curves within this interval.

The region of interest has an area given by the double integral

equivalent to the single integral

which evaluates to

.