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# number of the unit, powers of 10, properties of powers, play with information. What is the value of the unit? number of the unit and the number of digits, associated with 9e4 x 125e4 x 2000e14?

Wednesday 10 August 2016, by

You are invited to solve applying concepts of number of the unit, powers of 10, properties of powers, play with the information, as it advances in the development of exercise to make the break, for in each case apply techniques of dimensioning and go discarding alternatives to meet with a single, without fully develop the exercise. Estimating values.

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Hello

today I bring you a challenge that asks you as you progress in the resolution, you go making breaks, looking at the responses to apply gating techniques and disposal of alternatives.

In developing

9e4 x 125e4 x 2000e14

Consider PeB = P to the power of B

The number of the unit and the number of digits, the number is associated respectively.

a) 5 ; to less than 30

b) 5 ; to more than 42

c) 0 ; to more than 42

d) 0 ; to more than 55

e) 0 ; less than 55

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