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Ksenya-84 [330]
3 years ago
14

Find the measure of an exterior angle of a decagon

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0

Answer:

add all then sides then multiple it with how many sides you have

Step-by-step explanation:

someone tell me if i am right or not

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3 years ago
What is the completely factored from of 9x2+24x+16
dezoksy [38]

Answer:

(3x+4)(3x+4) is factor of given expression.

B is correct.

Step-by-step explanation:

We are given an expression 9x^2+24x+16

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First we write each term as perfect square as formula.

\Rightarrow 9x^2+24x+16

\Rightarrow (3x)^2+2\cdot 3x\cdot 4+4^2

Using formula , a=3x and b=4

\therefore (3x)^2+2\cdot 3x\cdot 4+4^2=(3x+4)^2

Now we write same number two times.

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3 0
3 years ago
(x +y)(x-y), ifx= -3, y=-5
Rufina [12.5K]

Answer:

-16

Step-by-step explanation:

(-3 + (-5))(-3 - (-5))

(-3 - 5)(-3 + 5)

(-8)*2

<u>-16</u>

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