3 years ago

Factor completely 3x2 -21

1 answer:

7 0

Answer:

=3(x^2 − 7)

Step by Step explanation:

3x^2 − 21

=3(x^2 − 7)

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Inessa05 [86]

Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

Step-by-step explanation:

The sum of the measures of interior angles of a polygon with $n$ sides is given by:-

$(n-2)\times180^{\circ}$

Given: The sum of the measures of the interior angles of a polygon is 1920°.

i.e. $(n-2)\times180^{\circ}=1920^{\circ}$

$n-2=\dfrac{1920}{180}\\\\ n= \dfrac{1920}{180}+2\\\\ n=\dfrac{2280}{180}=12.67$

But number of sides cannot be in decimal.

Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

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3 years ago

Kruka [31]

this is probably wrong but i got 25.2

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3 years ago

8_murik_8 [283]

<span>They are each divisors of 6460.

</span>

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3 years ago

nevsk [136]

55- 2v. Or also 55- (2xV)

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3 years ago

Naddik [55]

Answer:

Correct

Step-by-step explanation:

8 0

3 years ago