what is the number of significant figures
in ( 3.50+450) * 10^5?

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Solution

$A d d t h e n u m b e r s i n t h e b r a c k e t 3.50 + 450 - - - - - 453.50 - - - - T h e n u m b e r i s n o w 453.50 \times 10^{5} T h a t m e a n s t h e g i v e n n u m b e r h a s 5 s i g n i f i c a n t n u m b e r s . (A f t e r t h e d e c i m a l 0 s a r e i m p o r \tan t)$

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