Question

Express 0.0000 456 in Standard form.​

Answer 1

Answer:

Move the decimal 5 times to right in the number so that the resulting number, m = 4.56, is greater than or equal to 1 but less than 10

Since we moved the decimal to the right the exponent n is negative

n = -5

Write in the scientific notation form, m × 10n

= 4.56 × 10-5

Therefore, the decimal number 0.0000456 written in scientific notation is 4.56 × 10-5 and it has 3 significant figures.

Step-by-step explanation:

Answer 2

Answer:

We have,

(i) 0.0000456

=4.56×10

−5

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