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WITCHER [35]
3 years ago
15

Explain if you can please and thank you

Mathematics
1 answer:
barxatty [35]3 years ago
8 0

Answer:

28

Step-by-step explanation:

2y+12=3y-16

12=y-16

y=28

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Solve absolute value equations
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that took forever to type lol :^)
5 0
3 years ago
Helppppppppppppppppppppp
Rashid [163]
The composition of a function and its inverse is x. So an easy approach to solve this question is to find the composition of a function with itself. If the composition results in an answer "x", then this will mean that function and its inverse are the same.

Finding the composition for 1st option:
(fof)(x) = f(f(x))= \frac{ \frac{x-1}{x+5}-1 }{ \frac{x-1}{x+5}+5 } \\  \\ 
= \frac{ \frac{x-1-x-5}{x+5} }{ \frac{x-1+5x+25}{x+5} } \\  \\ 
= \frac{-6}{6x+24} \\  \\ 
=    \frac{1}{x+4}

Since the composition of the function with itself is not x, the function and its inverse are not the same.

Similarly, we can find the compositions of next 3 functions with themselves. The results of compositions are listed below:

(gog)(x)=g(g(x)) = x

(hoh)(x)=h(h(x))=\frac{4x-3}{7-x}

(kok)(x)=k(k(x))= x

Thus the option 2 and 4 are the correct answers i.e. these functions are the same as their inverse functions. 
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4 years ago
What angle is this? (little square to the top left)<br> Please help
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