The average human body contains a total of 7x10^27 atoms. The table shows how many of those are hydrogen, nitrogen, radium, and gold atoms. Estimate the ratio of hydrogen atoms to radium atoms. Expression your answer in scientific notation and in standard form.

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step-by-step explanation:

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step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2