Answer:
Step-by-step explanation:
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Required
Find P(A n B)
where
A = Event that the place is a city
B = Event that the place is in North
The first step is to get the sample space;
Let S represent the sample space;
The next is to list events A and B
A = City
B = North America
The next is to list common elements in A and B
The probability of A and B is calculated as follows;
Substitute and in the expression above
<span>A) Y= -5x+3
B) -x -7y = 13 substituting equation A) into B)
B) -x -7*(-5x +3) = 13
</span>
<span>B) -x +35x -21 = 13
B) 34x = 34
x = 1
</span>
<span>A) Y= -5*1 +3
A) Y= -2
</span>
I'll assume the ODE is
Solve the homogeneous ODE,
The characteristic equation
has roots at and . Then the characteristic solution is
For nonhomogeneous ODE (1),
consider the ansatz particular solution
Substituting this into (1) gives
For the nonhomogeneous ODE (2),
take the ansatz
Substitute (2) into the ODE to get
Lastly, for the nonhomogeneous ODE (3)
take the ansatz
and solve for .
Then the general solution to the ODE is
The area of a square is
A = s²
s² = 400
s = √400
s = 20
each side of a square room is 20.
hope this helped, God bless!
The correct answer would be x = 4