Answer:
115.2 in²
Step-by-step explanation:
Area of two triangles =
4 x 3 = 12
Area top rectangle/parallelogram =
5 x 8.6 = 43
Area back rectangle =
3 x 8.6 = 25.8
Area bottom rectangle =
4 x 8.6 = 34.4
Total = Sum of all areas
115.2 in²
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Answer:
The general solution is
Step-by-step explanation:
Given differential equation is
y''-4y'+4y=0
and
To find the we are applying the following formula,
The general form of equation is
y''+P(x)y'+Q(x)y=0
Comparing the general form of the differential equation to the given differential equation,
So, P(x)= - 4
The general solution is
F(x)=x²+6x
g(x)=7-x
(f-g)(x) means that f(x)-g(x), so
f(x)-g(x)
=x²+6x-7+x
Combining like terms
x²+6x+x-7
=x²+7x-7, so (f-g)(x)=x²+7x-7
Next,
(f-g)(x)
=x²+7x-7
(f-g)(9)
=(9)²+7(9)-7
=81+63-7
=144-7
=137, so (f-g)(9)=137. Hope it help!
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