I assume each path 
is oriented positively/counterclockwise.
(a) Parameterize by
with 
. Then the line element is
and the integral reduces to
The integrand is symmetric about 
, so
Substitute 
and 
. Then we get
(b) Parameterize by
with 
. Then
and
Integrate by parts with
(c) Parameterize by
with . Then
and
Answer:
don't worry I'm on my way step bro ! where'd you get stuck ?! (;
The answer to question is whether you want me some of your questions about the question of the answer to answer question i question is the B.
Answer:
Let's start with part B. if it was originally 10 cm tall and it goes up 0.5 cm. each day, then we know that to go up one cm it needs two days. With that information we can say that 8*2 = 16. So it needs 17 days to go up 8.5 cm which would make it 18.5 cm tall.
Step-by-step explanation:
f(x) = 0.5x + 10
0.5x + 10 = 18.5
0.5x = 18.5 - 10
0.5x = 8.5
x = 8.5/0.5
x = 17 days
Answer: $245
she makes $35 every week (her wage, i’m assuming) regardless of how many sales she makes.
in order to find out how much money she makes out of her sales, you have to multiply the percentage commission by how much her sales was: so .12x1750 = $210 from sales.
you then add up her wage and her sales money, so $35 from wage + $210 from sales = $245 total for the week
answer: $245
