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joja [24]
3 years ago
12

(a) 5.33 cm

Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Answer:

es la b 6.33 amigo ;) adios

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The length of a rectangle is 8 m more than 6 times the width. The perimeter is 156 m. Find width.
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<span>width = x
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Let f(x)=x+a/x+b such that f(f(1)=0 &amp; f(2)=-3 then a&amp;b resctivily are.
Yuliya22 [10]

Answer:

The value of a = - 1  ,   And b = \frac{ - 7 }{3}    

Step-by-step explanation:

Given as :

Function f(x) = \frac{(x + a)}{(x + b)}

And f(f(1)) = 0     And f(2) = - 3

Now For , x = 2 , y = - 3

I.e  f(2) = \frac{(2 + a)}{(2 + b)}

or,  - 3 = \frac{(2 + a)}{(2 + b)}

I.e 2 + a = - 6 - 3b

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Again  f(f(1)) = 0

So,  \frac{(1 + a)}{(1 + b)} = 0

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∴    a = - 1

So , put htis value of a i n eq 1 , we get value of  b

So , - 1 + 3b = - 8

Or,   3b = - 7

∴       b = \frac{ - 7 }{3}

Hence The value of a = - 1  ,   And b = \frac{ - 7 }{3}    Answer

3 0
3 years ago
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