Answer:
x = 15
5x + 55 = 2x +100, plug in 15 and they are equal
Answer: t = - 5 ∈
= ( -∞ , -4 )
Step-by-step explanation:
The standard form of O.D.E is written as :
+ 
Equation given :
+
=
, 
The first thing to do is to write the O.D.E in standard form , that is we will divide through by
, so we have

With this , we can see that
and
are both continuous in the same domain. Therefore , the intervals are :
= ( -∞ , -4 )
= ( - 4 , 4 )
= ( 4 , -∞ )
recall that y(−5) = 1 , then t = -5
This means that :
t = - 5 ∈
= ( -∞ , -4 )
Answer:
30.6
Step-by-step explanation:
15.3/4 = 3.825. 8*3.825 = 30.6
Answer:

Step-by-step explanation:
--- 1
--- 2
---3
-1 times the second equation =
=
--4
Now we are given that replace the third equation by the sum of itself and -1 times the second equation
So, New third equation = 
= 
Hence the new third equation is 
Answer:
V = -1
Step-by-step explanation:
-9 + 4 = V/5
-5 = V/5
V = -5/5
V = -1
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