Author Topic: Math Problems (Read 6111 times)

Jaxx · December 13, 2012, 08:57:33 PM

Quote from: Man 2 on December 13, 2012, 08:52:09 PM

Nobody's trying to solve my problem :c

it requires kinematics which maybe ~%25 of people here know. i'd solve it but i'm totally and utterly done with physics.

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Placid · December 13, 2012, 09:03:36 PM

Quote from: Fireboy on December 13, 2012, 08:52:24 PM

9

172x + 2y = 0

challenge!!!!!!

y=172x/2=86x
--> 172x + 86x = 0
253x=0
==> x = 0
y = 86*0 = 0

==> (0,0)

but yes there are infinitely many solutions, among which are (1,-86) and (-1, 86).. basically any multiple of those.

tan(arcsin(-3/5))

Elecro · December 13, 2012, 09:06:41 PM

Quote from: Elecro on December 13, 2012, 07:26:53 PM

bump again.

I have a test tomorrow and one of the things I need to know is discrete and continuous data. The book didn't explain it well enough and I'm confused, help pls.

SlayerZ99 · December 13, 2012, 09:09:03 PM

If a triangle is a 30,60,90 triangle and the value for the side opposite of the 30 degrees is equal to 5 what are the lengths of the other 2 sides.

Crysist · December 13, 2012, 09:13:07 PM

Quote from: SlayerZ99 on December 13, 2012, 09:09:03 PM

If a triangle is a 30,60,90 triangle and the value for the side opposite of the 30 degrees is equal to 5 what are the lengths of the other 2 sides.

5 rad 3 and 10?

log₃(1/9) = log₂X

Katadeus · December 13, 2012, 09:15:16 PM

Quote from: Elecro on December 13, 2012, 09:06:41 PM

Wish I knew

.:FancyPants:. · December 13, 2012, 09:15:30 PM

the sides opposite to 60 and 90 both have to be greater than 5,
but the side opposite to 90 must also be greater than the side opposite to 60.
nevermind im no help

edit: wait wait wait, this is a right triangle. we only know the length of one of the legs, is it even possible to find the length of the other leg and hypotenuse with just this information?

SlayerZ99 · December 13, 2012, 09:18:03 PM

30 degrees = 5
60 degrees = 8.66
90 degrees = 10

then again im horrible at wording problems.

Quote from: Crysist on December 13, 2012, 09:13:07 PM

5 rad 3 and 10?

log₃(1/9) = log₂X

I have no idea what you just did.

Im stuck in this wicked easy geometry class :( I just got a quiz back and I got a 106 on it.

Quote from: .:FancyPants:. on December 13, 2012, 09:15:30 PM

the sides opposite to 60 and 90 both have to be greater than 5,
but the side opposite to 90 must also be greater than the side opposite to 60.
nevermind im no help

edit: wait wait wait, this is a right triangle. we only know the length of one of the legs, is it even possible to find the length of the other leg and hypotenuse with just this information?

Yes. For 30,60,90 triangles it always goes by this
if the 30 degree side is Y then
60 degree side = Y * sqrt (3)
90 degree side = Y * 2

ultimamax · December 13, 2012, 09:25:14 PM

Quote from: .:FancyPants:. on December 13, 2012, 09:15:30 PM

the sides opposite to 60 and 90 both have to be greater than 5,
but the side opposite to 90 must also be greater than the side opposite to 60.
nevermind im no help

edit: wait wait wait, this is a right triangle. we only know the length of one of the legs, is it even possible to find the length of the other leg and hypotenuse with just this information?

yes. with right triangle trigonometry all you need is an angle that isn't 90 and a side.

viper30000 · December 13, 2012, 10:01:12 PM

Thread name should be do someones math homework and someone does yours in return
(dont count this)

brian498 · December 13, 2012, 10:04:34 PM

Quote from: Ticonderoga on December 13, 2012, 08:45:34 PM

Really?

Wow what a bargain

BlockoCrafter · December 13, 2012, 11:28:49 PM

Guys.
I need to be mathematized!
Holy cow, that's actually a word.

Tonkka� · December 13, 2012, 11:32:39 PM

Gosh, this thread is even worse than school RP's.

Blaze0 · December 14, 2012, 07:46:48 PM

Quote from: Ticonderoga on December 13, 2012, 08:41:28 PM

y=-y

Any whole integer in absolute value.

Providence · December 14, 2012, 07:50:38 PM