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Murljashka [212]
2 years ago
13

What is "i"? 9x-7i > 3 (3x-7u)

Mathematics
2 answers:
Natasha_Volkova [10]2 years ago
5 0
I think I would be 1 but I am not so sure
WARRIOR [948]2 years ago
5 0

Answer:

i < u

Step-by-step explanation:

9x - 7i > 9x - 21u (subtract 9x on both sides)

-7i > -21u (divide by -7)

i < u (sign flips because of divion by a negative)

I need a second inequality/equation to figure out i.

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Answer:

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Step-by-step explanation:

INVERSE FUNCTIONS: Two functions are said to be inverse of each other if for every y = f(x), there exists a function g(x),

such that x = f^{-1} (y) =  g(y)

Now, here if we need to show tha two functions f(x) and g(x) are inverse functions of each other , then show that for every x:

1. f  o g(x)   =   f(g(x))= x

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5 0
3 years ago
a carpenter has been asked to build an open box with a sqaure base. the sides of the box will cost $3 per m^2 and the base will
slamgirl [31]
<h2>Dimension of box is 2 m x 2 m x 1.33 m</h2>

Step-by-step explanation:

Let a be base side and h be the height.

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The sides of the box will cost $3 per m² and the base will cost $4 per m². Cost for making is $48.

That is

                 4a² + 3 x 4 x a x h = 48

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So volume is

                    V=a^2\times \frac{12-a^2}{3a}=4a-\frac{a^3}{3}

At maximum volume we have derivative is zero,

                    dV=4da-3\times \frac{a^2}{3}da\\\\0=4-a^2\\\\a=\pm 2

Negative side is not possible, hence side of square base is 2m.

Substituting in  a² + 3 ah = 12  

                           2² + 3 x  2 x h = 12  

                             h = 1.33 m

Dimension of box is 2 m x 2 m x 1.33 m

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3 years ago
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777dan777 [17]
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Answer:

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Step-by-step explanation:

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