pokemon23
  • pokemon23
How do I solve x^2-x-12/x^2+3x
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
ParthKohli
  • ParthKohli
Factorize the numerator and denominator. PS: Long time!
Luigi0210
  • Luigi0210
factor: \[\frac{ (x-4)(x+3) }{ x(x+3) }\]
pokemon23
  • pokemon23
Lol you do remember me!

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ParthKohli
  • ParthKohli
Of course, why not? :-)
ParthKohli
  • ParthKohli
@pokemon23 Uh, you should get exactly what Luigi said.
pokemon23
  • pokemon23
Do you mind helping me with my algebra final
pokemon23
  • pokemon23
Study
ParthKohli
  • ParthKohli
It's an exam?!
ParthKohli
  • ParthKohli
Oh, helping you study, right? I hope you don't send your final to me and cheat :-P
pokemon23
  • pokemon23
Yeah study I've been doing bad in algebra I lately.
ParthKohli
  • ParthKohli
OK, sure :-)
pokemon23
  • pokemon23
This question involves a triangle. Which ration sin B,Cos B,and tan B in the accompanying diagram of Triangle ABC?|dw:1370327858157:dw|
pokemon23
  • pokemon23
What will be the first approach to it.
ParthKohli
  • ParthKohli
Do you want all sin(B), cos(B) and tan(B)?
pokemon23
  • pokemon23
I think so.
ParthKohli
  • ParthKohli
OK, remember SOH CAH TOA?
pokemon23
  • pokemon23
yeah
ParthKohli
  • ParthKohli
Use it...
pokemon23
  • pokemon23
I got 5/13 for SOH
pokemon23
  • pokemon23
12/13 for CAH
pokemon23
  • pokemon23
5/12 for TOA
ParthKohli
  • ParthKohli
Yeah, so say that sin(B) = 5/13, cos(B) = 12/13 and tan(B) = 5/12
ParthKohli
  • ParthKohli
and that is your answer
pokemon23
  • pokemon23
Thanks.
ParthKohli
  • ParthKohli
Nay problem
pokemon23
  • pokemon23
Do you the formula for this question Daniel's Print Shop purchased a new printer for 35,000. Each year it depreciates(loses values) at a rate of 5%. What will its approximate value be, to the nearest cent, at the end of the fourth year?
pokemon23
  • pokemon23
I know its 35,000(?+.05)^4
ParthKohli
  • ParthKohli
\[35000(1 - 0.05)^4\]
pokemon23
  • pokemon23
Forgot the formula included the 1
ParthKohli
  • ParthKohli
OK, nice
pokemon23
  • pokemon23
I got 2850.771875
pokemon23
  • pokemon23
will it be 2850.80
ParthKohli
  • ParthKohli
My calculator suggests something else to me. Besides, the answer cannot be as low as that
pokemon23
  • pokemon23
forgot the extra zero
pokemon23
  • pokemon23
Now it's 28507.71875
ParthKohli
  • ParthKohli
Yay
pokemon23
  • pokemon23
To the nearest cent it will be 28507.72?
ParthKohli
  • ParthKohli
Yes.
pokemon23
  • pokemon23
Can you help me with learning how to find the slope when they you give you out the coordinates.
ParthKohli
  • ParthKohli
Sure!
pokemon23
  • pokemon23
That would be great
ParthKohli
  • ParthKohli
Do you know anything about it? Or shall I start from the beginning?
pokemon23
  • pokemon23
Its like y1+y2/x^2+x^1
ParthKohli
  • ParthKohli
uh nope.
ParthKohli
  • ParthKohli
Here's an intro. Suppose you're given two points on a coordinate plane. Each point has its coordinates (right?). Suppose that you connect a line between those two points. The slope is simply rise over run.
ParthKohli
  • ParthKohli
Do you get what I mean by rise over run?
pokemon23
  • pokemon23
I do recall rise/run
ParthKohli
  • ParthKohli
Yes. Let's have two real points. What is the slope of a line which contains the points \((1,4)\) and \((2,3)\)?
pokemon23
  • pokemon23
alright
ParthKohli
  • ParthKohli
Can you tell what the slope is... lol
pokemon23
  • pokemon23
well have to use a formula
ParthKohli
  • ParthKohli
Just use rise/run
pokemon23
  • pokemon23
I would say 0,3?
ParthKohli
  • ParthKohli
The rise is 0?
pokemon23
  • pokemon23
1/1
ParthKohli
  • ParthKohli
Hmm... if you have two points \((1,4)\) and \((2,3)\) then look how \(1 \to 2\) and \(4 \to 3\). When 1 becomes 2, it's increased by 1 right?
pokemon23
  • pokemon23
yeah its goes up 1
ParthKohli
  • ParthKohli
Eh... am I confusing you?
pokemon23
  • pokemon23
not really
ParthKohli
  • ParthKohli
Look at how the \(x\)-coordinate increases. That is the run. Look at how the \(y\)-coordinate increases. That is the rise.
ParthKohli
  • ParthKohli
Does that make sense?
pokemon23
  • pokemon23
Yes it does
ParthKohli
  • ParthKohli
good. Now the \(x\) coordinate becomes \(2\) and it was \(1\) earlier, right? So the \(x\)-coordinate increases by \(1\). That is the run!
ParthKohli
  • ParthKohli
Can you do it for the rise?
pokemon23
  • pokemon23
The y coordinate becomes 3 and it was 4
pokemon23
  • pokemon23
before.
ParthKohli
  • ParthKohli
Exactly. So the \(y\) coordinate has increased by \(-1\). That is the rise. Get it?
pokemon23
  • pokemon23
yeah I'm wondering if the question says what is the slop of the line that passes through the points A(-3,8) and B(3,6)
ParthKohli
  • ParthKohli
Seems like a good practice opportunity ;-)
pokemon23
  • pokemon23
do we do the same thing or is it something completely different.
ParthKohli
  • ParthKohli
We do exactly the same thing.
pokemon23
  • pokemon23
alright then
ParthKohli
  • ParthKohli
\(-3\) becomes \(3\). What is the increase?
pokemon23
  • pokemon23
6
ParthKohli
  • ParthKohli
Correct. Is that the rise or run?
pokemon23
  • pokemon23
that is rise
ParthKohli
  • ParthKohli
Why do you think so?
pokemon23
  • pokemon23
because its the x
pokemon23
  • pokemon23
coordinate
ParthKohli
  • ParthKohli
But \(x\) coordinate is the run
pokemon23
  • pokemon23
I mixed them up so yes its the run.
ParthKohli
  • ParthKohli
And how about the rise?
pokemon23
  • pokemon23
the rise will be -2
pokemon23
  • pokemon23
or 2
ParthKohli
  • ParthKohli
8 becomes 6... so the increase is?
pokemon23
  • pokemon23
2
ParthKohli
  • ParthKohli
lol no! 8 becomes 6, so the thing is decreasing right?
pokemon23
  • pokemon23
correct so will it be -2?
ParthKohli
  • ParthKohli
Yuppers
pokemon23
  • pokemon23
so the slop is 6/-2
pokemon23
  • pokemon23
slope*
ParthKohli
  • ParthKohli
Careful, it's rise/run
pokemon23
  • pokemon23
-2/6
ParthKohli
  • ParthKohli
Yeah, and simplify that
pokemon23
  • pokemon23
1/-3
ParthKohli
  • ParthKohli
Yeah, but it's a good practice to keep the negative sign in the numerator :-)
pokemon23
  • pokemon23
so -1/3
ParthKohli
  • ParthKohli
Hallelujah!
ParthKohli
  • ParthKohli
Do you want more for practice?
pokemon23
  • pokemon23
sure
ParthKohli
  • ParthKohli
\((3,3)\) and \((5,2)\)
pokemon23
  • pokemon23
-1/2
ParthKohli
  • ParthKohli
Yeah baby!
ParthKohli
  • ParthKohli
try making yourself a set of points and try to solve it.
pokemon23
  • pokemon23
alright thanks Parth for everything I'm coming back for more later today :)
ParthKohli
  • ParthKohli
Nay problem. I may have confused you, so sorry :-|
pokemon23
  • pokemon23
I confused myself I will see you later.
ParthKohli
  • ParthKohli
Oh, sorry :-( Bye bye

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