The answer would be 1/2 in fraction form or 0.5 in decimal
The line integral you need to compute is

By Green's theorem, this is equivalent to the double integral,

where
is the region with boundary
. This integral is equal to

Answer:
The value of rate of decrease of volume = - 3600 
Step-by-step explanation:
According to Boyle's law P V = C ------- (1)
Pressure ( P ) = 100 k pa = 10 
Volume ( V ) = 900 
Put these values in equation ( 1 ) we get,
⇒ C = 10 × 900 = 9000 N-cm = 90 N-m
Differentiate Equation ( 1 ) with respect to time we get,
⇒ V
+ P
= 0
⇒ V
= - P 
⇒
= -
---------- (2)
This equation gives the rate of decrease of volume.
Given that Rate of increase of pressure =
= 40 
C = 90 N-m
P =
pa = 10 
V = 900
Put all the above values in equation 2 we get,
⇒
= -
× 40
⇒
= - 3600 
This is the value of rate of decrease of volume.
25% off of $1400 equal: 1400 + .25 = 350, so 1400 - 350 = 1050
So now the computer with 25 % off is $1050.
tax 7%, means 1050 + .07 = $73.50 (sales tax charge)
Total computer with 25% off plus 7% tax equal:
$1050 + 73.50 = $1,123.50
Amir has saved $1200, so he has enough money to purchase the computer.
167, 15, -65, -110, -197, -200