Use the drop-down menus to describe the key aspects of the function f(x) = -x – 2x – 1.
the vertex is the
the function is increasing
the function is decreasing
the domain of the function is
the range of the function is

answer; 4 electrons;

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.  

answerca air mass;