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/sci/ - Science & Math


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10593590 No.10593590 [Reply] [Original]

Are there any recommended college algebra crash course videos/channels out there? I have 4 days to cram before an exam.

>> No.10593659

Answer is [-5, ∞)

>> No.10593671

>college
>algebra

>> No.10593689

>>10593659
No. The answer is (-∞, -5]:

5 - 3x ≥ 20
5 - 5 - 3x ≥ 20 - 5
-3x ≥ 15
3x ≤ 15
x ≤ 5

(-∞, -5]

>> No.10593697

>>10593689
I know, it is true

>> No.10593747

>>10593590
[-∞, -5]

>> No.10593751

>college algebra
Explain

>> No.10593775
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10593775

>>10593747
>[-∞

>> No.10593813

>>10593775
5-3(-∞) > 20

>> No.10593822

Check out my mnemonic: Walk the number line, you BIPED
Brackets Inclusive, Parenthesis Exclusive, Duh

>> No.10593832

>>10593813

>Not knowing mathematical notation conventions

You can't included ∞, it needs a '(' in front

>> No.10593833

>>10593832
you've been memed...

>> No.10593838
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10593838

>>10593590
>all the answers presume infinity exists

>> No.10593984
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10593984

fuck this board holy shit i come here twice a year to see if it's still shit and this is what I get, fuck you OP and fuck everyone who vitists this board, kill yourselves
you fucking retards are all either underaged or mentally on the level of an uderage, either way this board is fucking garbage and you should all migrate or die

>> No.10595254

>>10593590
Is this question even related to college algebra though? It seems far too easy.

>> No.10595487

>>10593590
>college algebra
You mean high school algebra, you fucking idiot?
>linear algebra
>abstract algebra
>recursive algebra
>category theory

>> No.10596094

What the fuck is college algebra?

>> No.10597104

>>10593832
not if you dealing with the extended reals my nigga

>> No.10597152

>>10597104
>Using extended reals in algebra 1
>Not using complex mod p rings

>> No.10597245
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10597245

>Tfw when have to learn how to count to 100 by tomorrow.

>> No.10597252

>>10593671
>>10593671
this

>> No.10597286
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10597286

I need to learn this shit for my final. It's so hard