3 years ago

What will be the answer

Mathematics

1 answer:

Alex17521 [72]3 years ago

8 0

Easily the answer is C

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A regular hexagon is shown below. Find the value of X

Varvara68 [4.7K]

Answer:

$x=9$

Step-by-step explanation:

The expression is for the interior angle of the hexagon; one interior angle is equal to $(11x+21)^o$ .

Since an interior angle of a hexagon measures 120°, we have the equality

$(11x+21)=120$ .

Now it is just a matter of solving for $x:$

$11x=120-21\\\\11x=99\\\\x=\frac{99}{11} \\\\\boxed{x=9}$

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Describe and correct the error in determining wheather (8,11) is a solution of y-x=3

Burka [1]

(8, 11) is the correct solution. x = 8, y = 11

Plug it in:

11-8=3

That's correct.

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Step-by-step explanation:

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STatiana [176]

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Solve for x in the equation 3 x squared minus 18 x + 5 = 47.

Rudik [331]

Answer:

x = -1.796, 7.796

Step-by-step explanation:

3x² - 18x + 5 = 47

3x² - 18x - 42 = 0

use quadratic equation

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