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#2

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Gmail is email that's intuitive, efficient, and useful. 15 GB of storage, less spam, and mobile access.

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Scott & David

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4c.  and 4d.

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#11

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#6

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e^4x=e^2-3x
4x=2-3x
7x=2
x=2/7

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9^(2x) * 27^(x-2) = 3^(-1)

3^2(2x) * 3^3(x-2) = 3^(-1)

3^(4x) * 3^(3x-6) = 3^(-1)

7x - 6 = -1

7x = +5

x = 5/7

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(we finally got it)

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-----------------------
4x = 2-3x
4x+3x = 2
7x = 2
x=(2/7)

-Christian &

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a) log2(2x+1)=3
2^3=2x+1
8=2x+1
7=2x
x=3.5

b) 2e^3x=6
e^3x=3
ln3=3x
1.099=3x
x=.37

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11.
D:{x| x<-3, x>1}

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2a. Find FoG
f(g(x))= square root 2x-3
Domain of g is all reals
Domain of FoG is 2x-3 is greater than or equal to zero.

2b. Find GoF
g(f(x))= 2square root x -3
Domain of f is x is greater than or equal to zero
Domain of GoF is x is greater than or equal to zero.

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4d.
f(x)=(2x+4)/(x-2)
(2y+4)/y-2=x
2y+4=(xy-2x)
(2x+4)=(xy-2y)
2(x+2)=y(x-2)

2(x+2)/(x-2)=f^-1(x)=(2x+4)/(x-2)

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6.) (1/4)^x=16^2
1/4^x=256
log_(1/4) 256=x
x=-4

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x-2=3√(y+5)
(x-2)^3= (3√y+5)^3
(x-2)^3= y+5
y=(x-2)^3-5

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Here is the review 5.1 to 5.4 worksheet.

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Here is the review 5.1 to 5.4 worksheet.