Answer:
(2,2) is not a solution of the system.
Step-by-step explanation:
Given : Equations and .
To find : Is (2,2) a solution of the system?
Solution :
To know that the given point is the solution or not we have to put the values in equation if inequality is true then the point is the solution.
Substitute (2,2) in ,
It is not true.
Substitute (2,2) in ,
It is true.
So, (2,2) is not a solution of the system.
<h3>
Answer: 675</h3>
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Explanation:
Start at $3.50 on the vertical y axis. Draw a horizontal line until you reach the supply curve. Then drop straight down to land somewhere between 650 and 700 units supplied per day. Check out the diagram below.
A good estimate may be to use the midpoint. Add up those values and divide in half.
(650+700)/2 = 1350/2 = 675
Therefore, we estimate that 675 sandwiches per day would be supplied if the price was $3.50 per sandwich.
Answer with explanation:
The given non Homogeneous linear differential equation is:
y" +4 y'=3 Sin 2 x-------(1)
Put , u=y'
Differentiating once
u'=y"
Substituting the value of , y' and y" in equation (1)
⇒u' +4u =3 Sin 2x
This is a type of linear differential equation.
Integrating factor
Multiplying both sides of equation by Integrating factor
where C and are constant of integration.
Replacing , u by , y' in above equation we get the solution of above non homogeneous differential equation