2 years ago

10. Find x if the top and bottom are parallel. X X-26

Mathematics

1 answer:

max2010maxim [7]2 years ago

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It’s jimins birthday today

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2 years ago

If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question...

solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

$3x - 2y = 9$
$27x^3 - 8y^3 = 1377$

And we need to find the prove that ,

$xy = 4$

We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

$1377 - 18xy (9) = 729$

$162xy = 1377-729$

$xy =\dfrac{648}{162}$

$xy = 4$

Hence Proved !

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3 years ago

what happens to the value of the expression 5/x + 5 as x decreases froma large positive number to a small positive number

agasfer [191]

Answer:

The value increases

Step-by-step explanation:

the smaller the divisor, the larger the quotient.

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2 years ago

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Step-by-step explanation:

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kolbaska11 [484]

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