## Roots Of f(x)= 0,1x³ - 0,9x

The function term is: f(x)= 0,1x³ - 0,9x What are the roots of it? Change the term: f(x) = x (0,1x² - 0,9) For x1 = 0 the term becomes Zero. 0,1x² - 0,9 = 0 is 0,1x² = 0,9 is x² = 9 This is true for x2 = 3 and x3 = -3. So the 3 solutions to this term are x1 = 0 x2 = -3 x3...
Iamwithu
22-25, M
0
May 10, 2013

## Ok, I need help with business calculus.

Anybody have any suggestions like helpful websites or books?
fiendforlife
36-40, M
0
Sep 29, 2014

## Can someone just lend me a shoulder right now.

And just listen to me explain how hard all of this math work is? Like literally geometry, and especially trigonometry. I should be getting paid to learn that stuff because it feels like hours of hard work. But maybe knowing i'll get paid for learning and solving already answered...
Yogurtree
18-21, F
2 Responses
0
Apr 6, 2014

## That's a very serious thing .

. Kinda ... I actually need help with that! I mean seriously, I dunno bout you guys but in my school we take like points 3,4,5 obvious 3 are the less and 5 are the most and I'm taking the 3 because I'm so stupid. I can't solve math I dunno how t do it !!!!? I tried to but I...
blackheartedxx
18-21, F
0
Apr 27, 2015

## Mathematician

math is a headache. although i was good at math during my middle school but in my school math was a burden the cos and sin made my conscious mind ache and signs bad haha
bijayalaxmishrestha01
18-21
2 Responses
0
Mar 9, 2011

## Me and math are the worst combination ever.

I simply don't understand. I follow the lessons at school and I understand it... But suddenly there comes a point were it... Slips away from me. Like holding a fish who's fighting to go back in the water. You have it, and suddenly it slips out of your hands and you have nothing...
xForgottenOne
18-21, F
0
Feb 11, 2015

## Math: Help Children To Stimulate Other Children

I have been interested for a while now to investigate (and even invent) methods to stimulate children to take more interest in their times tables because it is one of the building blocks which will enable them to do multiplication and division. Put another way ,if they don’t...
kitsgamesandads
61-65, M
3 Responses
0
Oct 13, 2011

## Math!!!! Enough said!

I'm getting there, but it's a slow process. Gotta go do more math hw now, tutoring is tomorrow, class & a test on wed this week. I hope I'll be ready!
Sweetgirl4u2
36-40, F
6 Responses
1
Feb 9, 2015

## Math In Chemistry

Let's react Calcium with Hydrochloric acid and get calcium chloride and hydrogen. 1 potion of Calcium is reacting with 2 potions of Hydrochloric acid to 1 potion of calcium chloride and 1 potion of (di)hydrogen. How much gas-volumina is generated, if you use 102 Gramm of Calcium...
Iamwithu
22-25, M
0
May 10, 2013

## I'd Like To Help You In Math

I'd like to help you in math, but for higher math, I'd need TeX edited formula here on EP. TeX-Math looks like: It can be made with instructions like: [TEX]sqrt{a^2 - dfrac{4}{9} * dfrac{a^2}{2^2} * sqrt{3}^2}[/TEX] [TEX]= sqrt{a^2* left(1- dfrac{4}{9} * dfrac{1}{2^2} * sqrt{3}^2...
Iamwithu
22-25, M
0
May 10, 2013

## *barf*

I hate math because I'm terrible at it. So my goal this year is to improve. My tutor was pretty cool and I learned a lot from him, but I have a long way to go.......
CrazyHippieChick
22-25
4 Responses
0
Sep 3, 2010

## How Much Math Is In 1 Slice Of Bread?

I have to pay for 1 slice of bread (50 Gramm) around 9 Eurocent. This slice of bread contains around 462 000 Joule of Energy which is around 110 347 calories or 110,3 kcal. (A human shall eat every day around 2000 kcal) 462 000 Joule are the same like 462 000 Wattseconds which...
Iamwithu
22-25, M
0
May 10, 2013

## Just found out the square root of -1 through a

humorous comic *****. Not sure I ever knew the answer to that but it wouldn't surprise me if I didn't as it wasn't my strongest subject. I just wish I had asked for more help when I struggled with it.
Axelton
46-50, M
2 Responses
1
Aug 16, 2014

## I am going to be a sophomore this fall.

I'm taking a summer Pre-cal course at the community college I go to. Im looking for the answer to a problem I did in the back of the book and I got a flash of deja vu from when I was in elementary school doing the same thing. But it made me really ashamed of myself because I...
eamnak
18-21, M
1
Jul 19, 2015

## Ease A Term

The following term shall be simplified: Get b² out from the upper term: Now you can cancel the right fraction term:
Iamwithu
22-25, M
0
May 10, 2013

## I really ****** up this first semester of

college. I know calculus is easy if you put effort into it, but the problem was I didn't. I became too easily discouraged and now my grade suffered tremendously. This was also because I'm still not sure of what I want my major to be. But at 2:30 am I'm making myself learn...## Math Has Found Me And I've Found Math

All my life I have barely skated by in Math. The most I ever got to was Algebra in H.S. and it has always been an ugly subject for me. As an adult I met my close friend and he told me that the way math was taught it probably was psycologically difficult because I'm a girl and...
Owleeeeease7
36-40, F
4 Responses
0
Feb 3, 2012

## I used to be good...then missed sleep in all

those days and suddenly I couldn't do maths.
SpontaneousRecoveryLovely
18-21, M
1
Sep 14, 2015

## I Chilled A Lot...

and now i am to suffer my summer at school, taking calculus again. i know it's bad for me to hate math, but i just don't feel like i will like it or love it. but i want to be good at it. i've let my parents down, getting this bad grade at calculus. i ought to do my best. tips on...
ErinValcourt
18-21, F
3 Responses
1
Apr 1, 2013

## I am in the honors program

for Algebra but i am just having a difficult time with factoring and it just reminds me of how impossible fractions are half the time for me. My friends often joke about how i got into honors and its honestly a good question i get straight D's in that class. I wish i can...
ArizonaLight
16-17, F
1 Response
0
Mar 1, 2015

## Just Not Enough

I'm a straight A math student, but noooo, I have to get a 100, or else I kiss college goodbye.
UCHusky11
18-21, F
2 Responses
0
Mar 3, 2012

## Math: Help Children To Stimulate Other Children

I have been interested for a while now to investigate (and even invent) methods to stimulate children to take more interest in their times tables because it is one of the building blocks which will enable them to do multiplication and division. Put another way ,if they don’t...
kitsgamesandads
61-65, M
1 Response
1
Oct 13, 2011

## Discalculia

I have always been bad at math. I have a math disability called discalculia. I have a hard time doing simple basic math like sub, plus, division, and multiplication. I also have a hard time figuring out left and right. I am unable to grasp and remember mathematical concepts...
ForeverAlone08
18-21, F
4 Responses
2
Sep 16, 2010

## I want to be better at math

but how can I be better if my math teacher doesnt even teach me. In my school the students are supposed to teach themselves. I have never been good at math so how can I even teach myself. I really hate my math teacher he is a good for nothing if I ask him for help he tells me...
NoobLove
26-30, F
1 Response
0
Jun 3, 2014

## Math In Chemistry (Glucose To Ethanol)

Calculate the mass of pure ethanol which can be made of 10 Kilogramm Glucose. Ethanol Glucose: Formula: 1 potion of Glucose is reacting to 2 potions of ethanol. molar mass of Glucose: 180 Gramm per mol molar mass of Ethanol: 46 Gramm per mol 10 Kilogramm Glucose are 55 5/9 mol...
Iamwithu
22-25, M
0
May 10, 2013

## It's funny when I would ask my math teacher

when would we ever use this in our life? lol then I realized everything is mathematical. I still suck at math
steezyben
18-21, M
1
Dec 9, 2014

## 2 Equations

I) (x+7)(y+3) = (x+2)(y+3) II) 7y + x = 9 shall be solved for x and y. Change I) into: xy+3x+7y+21 = xy+3x+2y+6 7y+21 = 2y+6 5y = -15 y = -3 Put y into II) term: 7 ( -3) + x = 9 x = 30
Iamwithu
22-25, M
0
May 10, 2013

## I get really bad grades

and I'm in Algebra 1. I need some reference materials or some website that i could use that will help me.....please help if you can.
HeartfeltMusic
16-17, F
3 Responses
1
Feb 10, 2015

## Dearest Math.

I know why I've always hated math... because I've always hated my math teachers. I went into college as an engineer major and dropped out the second week because I couldn't handle the calculus. I was absolutely depressed. I felt like a failure... engineering had been the goal of...
Adosia
18-21, F
1
Nov 24, 2010

## Dividing Something Through A Number Smaller Than One But Greater Than Zero

For example: 1 cake ÷ 0.5 = ? For example this cake: I divide it by 0.5 So I get 2 cakes: Try it yourself in your calculator. Why is it this way? Because: If you divide through a number 0 < x < 1 you are allowed to multiply with the multiplicative inverse, too. For 0...
Iamwithu
22-25, M
0
Jul 19, 2013