Perform the following operation and express the answer in
scientific notation.
2.589x106 : 3.687x105
?]
[ ? ]x10!
Х
Ilona
No links

7.022

Explanation:

2.589x10^6/ 3.687x10^5

1. 2.589/3.687 = 0.702197 [Separate out and divide just the decimal portion first]

2.  10^6/10^5 = 10^(6-5) = 10^1  [Divide the exponent portion next]  When dividing, subtract the denominator exponent from the numerator exponent:  (6-5) = 1.  The exponent is 1.

0.702197x10^1    [Put the two pieces together: 1. and 2.]

7.02197             [Move the decimal point once to the right, which will reduce 10^1 to 10^0, or 1]

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.