Question

If solution of a quadratic equation are 4.863 and – 0. 398 correct to three decimal places , then solution correct to two significant figure are​

Answer 1

Answer:

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Answer 2

Given : solution of a quadratic equation are 4.863 and – 0. 398 correct to three decimal places

To Find  : Solution correct to two significant figure

Solution:

All non-zero digits are significant.

The leftmost nonzero digit is the first or most significant figure.

If there is a decimal point, the rightmost digit is the last or least significant figure

If there is no decimal point explicitly shown, the rightmost non-zero digit is the least significant figure

All digits between the most significant figure and the least significant figure are significant.

4.863

= 4.9   to two significant figure

– 0. 398

= – 0. 40     to two significant figure

4.9  and   – 0. 40 are Solution correct to two significant figure

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