Skip to content
View in the app

A better way to browse. Learn more.

Coldplaying

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Negative signs

Featured Replies

okay, this might sound silly, but has anyone ever understand why when you multiply a negative number with another negative, you get a positive number?

 

I just try to get an example or imagine something that would prove me that, but I can't get it..... it's like fine, I follow the rule but I can't understand why it does that!

 

The other one is for example -7--7 ends up being zero, but that one I get it by, I suppose, thinking it is the say as "no, he's not not here" (or something like that, that means yes)

Math is definitely NOT my strong point :anxious: I passed it by a hair in high school.

Math is definitely NOT my strong point I passed it by a hair in high school.

 

me too! and that's only b/c i talked to my teacher and begged her to let me pass. :lol:

Yeah, get this! At the end of first semester in grade 12 I asked my math teacher if I was going to pass the course so I would know if I had to apply to re-take it next semester, and he told me I was gonna pass. But it turned out he looked at the wrong mark and I actually got a 45!! So he bumped me up to a 50 because it was his mistake...:anxious: whew.

okay, this might sound silly, but has anyone ever understand why when you multiply a negative number with another negative, you get a positive number?

 

I just try to get an example or imagine something that would prove me that, but I can't get it..... it's like fine, I follow the rule but I can't understand why it does that!

 

The other one is for example -7--7 ends up being zero, but that one I get it by, I suppose, thinking it is the say as "no, he's not not here" (or something like that, that means yes)

 

For the subraction, imagine it on a number line. You're at -7, and you want to subtract another -7. If you were just subtracting 7, you'd move "left" on the number line to -14, but since you're subtracting a negative number, you move the opposite direction, back to 0. The same principle applies to the multiplication. I may sound like I'm talking to a baby, but I actually had to explain this to another college-age person a few weeks ago. :stunned: Also, the double-negative thing works too. :P

I failed math twice in high school. Never took it again after that, except for a statistics class I had to take in university.

I'm taking the absolute easiest math there is in university. :cool:

Yeah, get this! At the end of first semester in grade 12 I asked my math teacher if I was going to pass the course so I would know if I had to apply to re-take it next semester, and he told me I was gonna pass. But it turned out he looked at the wrong mark and I actually got a 45!! So he bumped me up to a 50 because it was his mistake... whew.

 

hahaha..omg! that's crazy! :o

I'm taking my one required math course right now, and hoping to barely squeeze by with a passing grade so I never have to take math again. :lol:

 

I really wish I'd taken it last year when it might have been a little fresher on my mind from high school. :rolleyes:

Yes, you were.

 

My grade 11 math teacher knew how terrible i was in math, he bet me $20.00 that i'd fail the exam. :lol:

I know..hahahaha

 

I was determined to pass so i stayed up and studied all night....all the wrong things...and i failed. :lol:

 

BUT the teacher retired so i never saw him again. :lol:

okay, this might sound silly, but has anyone ever understand why when you multiply a negative number with another negative, you get a positive number?

 

I just try to get an example or imagine something that would prove me that, but I can't get it..... it's like fine, I follow the rule but I can't understand why it does that!

 

The other one is for example -7--7 ends up being zero, but that one I get it by, I suppose, thinking it is the say as "no, he's not not here" (or something like that, that means yes)

 

thats always done he head in ... :stunned: :/

Yes, you were.

 

My grade 11 math teacher knew how terrible i was in math, he bet me $20.00 that i'd fail the exam. :lol:

 

:lol: Is that even allowed?

MATH IS EVIL.

 

ARGH.

 

I have my finals coming up on Monday :rolleyes: I feel sick all of a sudden.

Create an account or sign in to comment

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.