Question

math help (:
@terenzreignz

Answer 1

this is... taxing... :D

Answer 2

whats that?

Answer 3

\[\huge \frac6{x-6}-\frac{2}{x-2}=\frac{-x}{x^2-8x+12}\]

Answer 4

Just lengthy
But I think it's easy :)
Let's work on the left side, shall we?

Answer 5

lets do it (:

Answer 6

First, always...
\[\huge \frac{a}b\pm\frac{c}d=\frac{ad\pm bc}{bd}\]

Answer 7

So, can you apply this to the left side? Don't simplify yet, though...

Answer 8

6(x-2) - (<--?) 2(x-6)
------------------
(x-6)(x-2)

Answer 9

Yes, quite correct. NOW simplify the denominator.
Don't worry, just type the new denominator for me :)

Answer 10

okkk
x^2 - 2x - 6x +12

Answer 11

simplify... you have a -2x - 6x there... :/

Answer 12

oh jk, -8x
x^2-8x+12

Answer 13

and notice, it's the same denominator as on the right side :D

Answer 14

ahhh it is :D

Answer 15

\[\huge \frac{6(x-2)-2(x-6)}{x^2 - 8x + 12}=\frac{-x}{x^2-8x+12}\]

Answer 16

And clearly if
\[\huge \frac{a}c=\frac{b}c\]then\[\Huge a=b\]

Answer 17

okay so do i simplify "a" now?

Answer 18

well, you can cancel out the denominators on both sides, since they're the same, right?

Answer 19

yes so a=b

Answer 20

yeah, so
\[\huge 6(x-2)-2(x-6)=-x\]
Now solve it like the brilliant student that you are :)

Answer 21

:D 6x-12-2x+12
12's cancel out so 6x-2x=4x
-4x=x...? im confused....did i do that right?... lol

Answer 22

Yeah, you did. Solve it. It might throw you off, but there is ONE value of x that would make this true...

Answer 23

-4?

Answer 24

No... -4(-4) \(\ne\) -4

Answer 25

16

Answer 26

Look, add 4x on both sides...

Answer 27

you get 0 = 5x

Answer 28

divide by 5 which equals 0..

Answer 29

Yeah, so x = 0
There, you're done :)

Answer 30

You can check it with your original equation, you'll see it checks out.

Answer 31

yaaaaaay c:

Answer 32

i think its going to be 8/19...

Answer 33

Correct.

Answer 34

yaaaay :D

Answer 35

i got nothing..

Answer 36

Well, what's the probability of choosing a freshman on the first selection?

Answer 37

166/801

Answer 38

and for senior its 240 / 801

Answer 39

reduces to 80/267

Answer 40

Slow down there :)
odds for the first draw being a freshman is 166/801 STOP

Answer 41

Now, at the SECOND draw, what are the odds of it being a senior?

Answer 42

do i subtract 166 out of 801?

Answer 43

No... just one ;)
since you already took ONE freshman out of the draw :D

Answer 44

oh jk lmao 240/800

Answer 45

reduces to 3/10

Answer 46

helllloooo i need to hurry and do this... its almost 11:30... gotta wake up at 5:30.. lol

Answer 47

Okay, so multiply those, and you have your probability :)

Answer 48

sorrry to rush.. :P

Answer 49

3/10
and
166/801

Answer 50

Hah, so now you know how it feels to be me... :P
Except now, here, it's broad daylight :D

Answer 51

haha oh hush... btw its .06

Answer 52

right?

Answer 53

yeah, rounded off, if that's how you like it :)

Answer 54

im going to keep it as .06

Answer 55

Suit yourself :)

Answer 56

okay i have 10 questions. im doing 5 tonight and 5 tomorrow when i get off work at 3 pm.

Answer 57

10 more? o.O

Answer 58

no no no.. 10 questions total.

Answer 59

Sum of an infinite geometric series is given by this formula
\[\huge \frac{a}{1-r}\]

Answer 60

Where a is the first term and r is the common ratio.

Answer 61

okk

Answer 62

a=1

Answer 63

What's your common ratio, then?

Answer 64

Common ratio is what you multiply to the first term to get the second term, and it should be the same as what you multiply to the second term to get to the third.

Answer 65

-1/2?

Answer 66

Correct. So r = -0.5
Now solve.

Answer 67

1/1.5?

Answer 68

Yeah, whatever that is :D

Answer 69

But it's 2/3

Answer 70

oh lmao!

Answer 71

yayayayay :D

Answer 72

Your second sequence is an arithmetic sequence.
The n'th term of an arithmetic sequence is given by the formula
\[\huge a+(n-1)d\]where a is the first term and d is the common difference.

Answer 73

The common difference d is what you ADD to the first term to get the second term, should be the same as what you add to the second term to get the third term, should be the same as what you add to the third term to get the fourth term, etc...

Answer 74

lol ok so a= -12 n= 20 d=7

Answer 75

Yes. Very good :)
Now solve.

Answer 76

20th term =121

Answer 77

Nice job.

Answer 78

thanks (:
will these take too long to do?

Answer 79

6 won't.

Answer 80

alright we'll do the rest tomorrow..will you be on at about 4pm my time?

Answer 81

what time is it there, now?

Answer 82

11:40pm

Answer 83

that'd be the day... that's 4am my time o.O

Answer 84

Means i can't guarantee it.

Answer 85

0.0 awh man.... lol

Answer 86

Just go online and see if I am... if I am... if not, there are plenty of other users that can help you out :)

Answer 87

there not as good to explain things as you are though :o

Answer 88

Oh, but they won't be boring, that's for sure :P
(You can go ahead and hunt Pan now :D )

Answer 89

lol pan isnt here :( boooo. but okay gooodnight ill only get like 5 hrs of sleep /:

Answer 90

Good night.

Answer 91

----TINK OUT----
;P

Answer 92

o.o