Answer:
1300
Step-by-step explanation:
The number in the place to the right of the hundreds place is 5, in the tens place. That digit is greater than 4, so the rounding is to the next higher hundred: 1300.
There are 28 responses recorded.
There were 24 students polled.
The answers to these two questions are different because students could possibly be interested in more than one sport.
The key idea is that, if a vector field is conservative, then it has curl 0. Equivalently, if the curl is not 0, then the field is not conservative. But if we find that the curl is 0, that on its own doesn't mean the field is conservative.
1.

We want to find
such that
. This means



so
is conservative.
2.

Then




so
is conservative.
3.

so
is not conservative.
4.

Then




so
is conservative.
Answer:
(5,15)
Step-by-step explanation:
A.
Answer:
charge for d days=d×75$
charge for k kilometers=k×65cents
total cost=75d$+k×0.65$
c=(75d+0.65k)$