Its sum is: 1/2+1/2 = 1
A = h/2*(a + b) So 2A/h = a + b and therefore, a = 2A/h - b
2 and a half plus 3 and a half plus 4 and a half = 10.5
2 and a half plus 2 and a half plus 10 plus 10 = 25
This equals one and a half.
4 and (not an!) a half.
One fourth plus one half plus one half plus 1 is equal to 2.25 or 2 1/4
H
The formula for H plus 1 plus H minus 1 is 2H. This is because the +1 and -1 charges cancel each other out, leaving only the H atom.
The formula for hydrogen plus hydrogen is H + H, which combines to form the molecule H2.
H+ or a proton.
It is 23.
(b+h)(b+h)= b2+2hb+h2.