3 years ago

The vertices of a polygon are shown below.

Mathematics

2 answers:

stiv31 [10]3 years ago

6 0

Answer:

The Answer is C

Step-by-step explanation:

This applies to your exam.

gregori [183]3 years ago

5 0

Answer:

The awnser is c

Step-by-step explanation:

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4 years ago

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3 years ago

Explain whether the following given sets are closed under addition:

Ivan

Answer:

Step-by-step explanation:

a) Yes.

$\forall\ a,b\ \in\ B,\ a+b\in B\ (since\ 0+0=0)$

b) Yes

$W=\{0,1,2,3,..,\}\ (whole\ numbers)\\\forall\ a,b\ \in\ 3W,\ a+b\in 3W\\since:\\a\ \in\ 3W \Longrightarrow\ \exists\ k_1\in W | a=3*k_1\\\\b\ \in\ 3W \Longrightarrow\ \exists\ k_2\in W | b=3*k_2\\\\a+b=3*k_1+3*k_2=3*(k_1+k_2) \in 3W\\$

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$\forall n\ \in\ \mathbb{N}: \Longrightarrow\ n+1 \in\ \mathbb{N}\\$

d) No

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3 years ago

Is -9/4 rational. Please I need this now the thing said 20 characters long so I’m just gonna type. The best answer gets brainlie

mihalych1998 [28]

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Step-by-step explanation:

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