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svet-max [94.6K]
3 years ago
12

Express the following in the usual form(a) 6.25×10-⁵

Mathematics
2 answers:
andrew-mc [135]3 years ago
6 0

Answer:

0.0000625

Step-by-step explanation:

10^{-5}=0.00001

6.25*10^{-5}=6.25*0.00001=0.0000625

fenix001 [56]3 years ago
3 0

Answer:

So we need to express 6.25 * 10^{-5}.

What is being used here is scientific notation, and when the exponent is negative, that means the number is less than 1.

As the exponent is -5, we have to move the coma 5 positions to the left (if it was positive we would have done that put to the right), so:

6.25 * 10^{-5}=0.0000625

If you don't understand what does it mean to move the coma to the left, see this example to understand it:

We move it one time from 6.25 --> 0.625

We move it two times from 6.25 --> 0.0625

We move it three times from 6.25 --> 0.00625

We move it four time from 6.25 --> 0.000625

What we are doing is adding 0 to the left and if the exponent was positive, we would add 0 to teh right.

So now we know that \boxed{6.25 * 10^{-5}=0.0000625}

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