Q. 255.0( 3 Votes )
Out of the four options, only one is correct. Write the correct answer.
The standard form for 234000000 is
A. 2.34 × 108
B. 0.234 × 109
C. 2.34 × 10–8
D. 0.234×10–9
Answer :
Standard form is a form of writing very large or very small numbers without negative exponent and in a précised form, with decimal after one digit.
We know that,
234000000 = 234 × 1000000
234000000 = 2.34 × 100 × 106
234000000 = 2.34 × 102 × 106
By laws of exponent,
xm × xn = xm + n
⇒234000000 = 2.34 × 102 + 6
⇒ 234000000 = 2.34 × 108
Hence, the standard form for 234000000 is 2.34 × 108.
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