3 years ago

Find the slope of -1:9 0:5 1:1, -4/1 -1/4 1/4 4/1

Mathematics

2 answers:

Makovka662 [10]3 years ago

7 0

Answer: I’m a goofy goober yeah your a goofy goober yeah

Step-by-step explanation:

IRISSAK [1]3 years ago

4 0

Answer:

1/4

Step-by-step explanation:

A P E X

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Explain whether the following given sets are closed under addition:

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Answer:

Step-by-step explanation:

a) Yes.

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

b) Yes

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

c) Yes

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

d) No

$3\in V , 3+3=6\notin V\\$

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3 years ago