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tankabanditka [31]

3 years ago

5

Solve the following system: (5 points)

1 answer:

dusya [7]3 years ago

3 0

(4,7) because 3•4 = 12 and 12+7 = 19

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3 years ago

An expression is given that has a value between 4.44.4 and 4.54.5, and where xx represents an integer. \sqrt{x}+\sqrt{x} x

musickatia [10]

Answer:

$x = 5$

Step-by-step explanation:

Given

$\sqrt x + \sqrt x = (4.4,4.5)$

Required

Find x

When the result is 4.4, we have:

$\sqrt x + \sqrt x = 4.4$

This gives:

$2\sqrt x = 4.4$

Divide both sides by 2

$\sqrt x = 2.2$

Square both sides

$x = 2.2^2$

$x = 4.84$

When the result is 4.5, we have:

$\sqrt x + \sqrt x = 4.5$

$2\sqrt x = 4.5\\$

Divide both sides by 2

$\sqrt x = 2.25$

Square both sides

$x = 2.25^2$

$x = 5.0625$

So, the value of x is between 4.84 and 5.0625

i.e.

$x = (4.84,5.0625)$

The only integer between the above interval is 5.

Hence:

$x = 5$

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3 years ago