Write the number given below in the scientific notation (kX10n where 1≤ k < 10 and n is an integer) 0.00000231
Answers
Answer:
Decimals are a form of writing fractions which have powers of
10
as their denominators.
0.0001
=
1
10
,
000
=
1
10
4
Using the law of indices:
x
−
1
=
1
x
, we can get rid of the fraction:
1
10
4
=
1
×
10
−
4
←
this is scientific notation.
A short way of changing to scientific notation is to move the decimal point until there is only one (non-zero) digit to the left of the point. The number of places moved is the index.
Point moves to the right, the index decreases.
Point moves to the left, the index increases.
0
.000
1
=
1
×
10
−
4
Answer:
To write a number in scientific notation, move the decimal point to the right of the first digit in the number. Write the digits as a decimal number between 1 and 10. Count the number of places n that you moved the decimal point. Multiply the decimal number by 10 raised to a power of n.
Step-by-step explanation:
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