Which set is closed under subtraction?

Mathematics

1 answer:

siniylev [52]2 years ago

7 0

Third one is correct

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0.4 / 17= what i need help this is ilx

Dvinal [7]

Answer:

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Step-by-step explanation:

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2 years ago

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Write an expression to describe the sequence below. Use n to represent the position of a term in the sequence, where n = 1 for t

inessss [21]

Step-by-step explanation:

$a_1=6\\a_2=a_1+1\to a_2=6+1=7\\a_3=a_2+1\to a_3=7+1=8\\a_4=a_3+1\to a_4=8+1=9\\\vdots\\\\\text{The recursive formula}\\a_n=\left\{\begin{array}{ccc}a_1=6\\a_n=a_{n-1}+1\end{array}\right\\\\\text{It's an arithmetic sequence with}\ a_1=6\ \text{and difference}\ d=1\\\\\text{The explicit formula of an arithmetic sequence:}\\\\a_n=a_1+(n-1)d\\\\\text{Substitute:}\\\\a_n=6+(n-1)(1)\\a_n=6+n-1\\a_n=5+n\\\\a_n=n+5$

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2 years ago

Hi. Could someone please help me help my son with his homework. TIA

Nitella [24]

If the question is how much Cody will jog to save ratio 4miles:3 miles
The ratio is $\frac{3}{4}$
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2 years ago

Do any of you get this question? Please help!

Alexxandr [17]

Honestly i just wanted to try this question since ive never seen it but i dont rlly know if i did it right at all

I equaled GH, HI, and GI together to get y

which i got y=-2

and what i got next i feel is off since

GH, HI, and GI all equaled -11

if you kind of know how to do the question maube you could correct me from there but otherwise dont take my word for it completely

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2 years ago

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Katyanochek1 [597]

Answer:

good question

Step-by-step explanation:

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2 years ago