Math Is Fun Forum

this might help:
http://en.wikipedia.org/wiki/Complex_number#Formal_construction

Arent there 20 7s in 1-99??

7, 17, 27, 37, 47, 57, 67, 77, 87, 97, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79

Hi,

i think you are over thinking this by a mile.

The 8mA and 2mA are ideal current sources. (neglect internal resistance R=0)
12V is an ideal voltage source.

now what I need to do is find the voltage across the 1kOhm resistor by simplifying the circuit. Thevenins therorem: take any two nodes, you want to find the voltage across; the rest of the circuit can be simplified into a voltage source and an equivalent resistor.

For this question what I have to do is find Vo by simplifying the rest of the circuits into a voltage source and a equivalent resistor.

Edit: To simplfy the circuit I can use KCL, KVL and superpositioning.

Let me know if you cant solve it, I will post this in a Physics forum.

Thanks,

C25

OK heres a question I am having trouble with:

Circuit: https://docs.google.com/open?id=0By2PVt4Tdl6VZjNmMGRmODgtOWVmYy00MTUxLWExNjItZmQ4MTMxMzYyZDAy

I have to solve for

using Thevenin's Theorem.

I dont know how to break apart the circuit, I tried just removing the 1kOhm resistor and trying to find V(Open Circuit) and R(thevenin) but I couldnt solve for V(OC).

Thanks in advance,
C25

Thanks for the explanation, I eventually figured out how to cancel the units.

I need help with circuit problems, will you be able to help or do you know any good forums where I can ask my questions?

Thanks,

C25

Wow guys! Sorry for the confusion...this was how the problem was stated to us and it was very confusing!!!
Thanks for the help! I appreciate it, was busy for the last few days so I couldn't get back to you guys but looks like you figured it out.

The answer i posted is correct...i verified with Teachers Assistant.
You consider the third case i posted because you can have one card which of same suit at lets say card 2 and can also be the same value as card 1. So yea three cases, add them together and divide by total possibilities.

That was stated in the question. (I did not post it when i posted the question)

AHHH!! HAHAHA Bobbym i am pretty sure that is not the right answer....remember the hint: it is between 55% and 60%...ur answer is 6.3%

Hahaha I knew I was right about the balls and slots, I was just mixing up the variables

Where n is the number of letters and k is the number of slots. We learned the right side of the equation in class so I am more accustomed to that, I just have to figure out which variable is which.

There is never a 3 card badugi, for a badugi you need 4 cards with 4 different suits and values.