why isn' there a b battery? there are a,c,d but no b?
549609
Actually b batties are pretty much non-existent anymore, the modern 9-volt is in the B-battery family, but it has to do with the type of mounting, and the voltage.  B-batteries use a plate type and come in much higher voltages then A, B, or Ds, the manufacturing process is harder for them, so nothing is made for them anymore.
1078584
There are some solution available at http://www.batteryspace.com/index.asp?PageAction=VIEWCATS&Category=885
497526
probably was dropped when they were packaging it or maybe there's not a lot of battery. have it fixed or something. good luck!
1154468
make a common denominator\n\na/b - c/d = a*d/b*d - c*b/d*b = (a*d-c*b)/b*d
760269
"d" is the answer.\n\nGet an "A".
817396
Since B is in the middle, lets set B as 0 for example purposes.  A would be any negative number (A<B) and C would be any positive number (B<C).  Since there are no 'or equal to' symbols, A<C.  This is true for all possilbe cases.
1129213
($4.15/100)345 \nlet me get a calculator\n\nOh these batteries, one can never have enough batteries.\n\nOk a 'wild' guess it is it 'C'
598213
On a battery, you have two terminals- a positive and a negative.  As a result, the net charge is 0.  Also, a battery is the source of 'power' in an electrical circuit, it is direct current (DC) instead of alternate(ing) current (AC).  The battery produces a certain number of Volts and from that, you can find the current at different points in the circuit, as well as the number of amps.  (I hope this is what you are talking about)
165476
How about (a+c)/(b+d)  ? more interesting!!\n\nbtw this only work when a/b != c/d
1083786
Are you looking at computer code?  B indicates binary base and D indicates decimal.\nB100 = 1*2^2 + 0*2^1 + 0*2^0.\nD1000 is one-thousand.
57033
the answer is 3 because a-b|a-b & a-b|a so a-b|b
678158
because a+b-c = 0, \nu cant cancel out (a+b-c) from both sides \nu can only cancel if (a+b-c) is not zero, which is not the case. \n\nhint: i should get best answer
34477
It is 'B'. But I don't understand why you put up this question under 'Physics'!
571109
did you make sure the battery is connected to the spade-plug tipped wire?  usually, this is the first thing you do when you get it home, but it's worth checking if you didn't set it up yourself.  there should be a removable plate somewhere on the UPS, you can check it.  Just make sure it's not plugged into the wall when you open the case up.
989618
I am pretty sure that as long as the main battery is charged you don't need the backup battery.  It's there just in case your main battery should fail.
296681
either A, B, or AB is possible
122942
Any answer with B>90 is acceptable satisfying:\nA=2B-180\nand C=180-B-A\n\nfor example: (A,B,C)=(20,60,100) or (40,30,110)\n\nNote that ABC and DBC are similiar.