Alock on a bank vault consists of three dials, each with 30 positions, in order for the vault to open, each of the three dials must be in the correct position. how many different "dial combinations" are there for this lock? place your answer in the blank. do not use any decimal places or commas. for example, 12345 would be a legitimate entry.

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step-by-step explanation:

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.