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#1 Re: Help Me ! » Remembering algebra! » 2007-12-12 09:47:06

Here is an interesting problem! (I can't use a graphing calculator!

A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result:

more than three twos

#2 Re: Help Me ! » Remembering algebra! » 2007-12-12 05:12:11

Is there any way of solving it via elimination method??

#3 Re: Help Me ! » Remembering algebra! » 2007-12-12 02:27:43

Thank you!

I was also trying to solve this. But I understand it when I have all the variables.


1. Solve the 3 equation with three variables:

    x - y + 5z= -9
  5x      +  z = -1
   x+ 4y+  z =15

#4 Help Me ! » Remembering algebra! » 2007-12-11 11:34:50

je99
Replies: 6

Hi!
I know it might be simple but I just don't really remember this from high school and for that reason I found the professors method different.

Find the equation of the line satisfying these conditions:


a. through (3, -6) and vertical




b. through (5, 8); perpendicular to 6x + 8y= 94

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