5
15
There is not enough information to answer the question as it is stated. If the value of pi*r2*h/3 is known (to be k, say) then h = 3*k/(pi*r2)
If h = 7 then h squared = 49
It depends on the exact value of h, but, algebraically, the answer is h/24.
5
It is: 16-(3*4) = 4
15
15
29
58
The expression h + 56 can't be simplified. If you assign a value to h, you can calculate the sum.
It is: (5*12)-2 = 58
There is not enough information to answer the question as it is stated. If the value of pi*r2*h/3 is known (to be k, say) then h = 3*k/(pi*r2)
To calcualte NCV you need calorific value on GAR, H on gar and Total moisture.
Litmus paper or you could measure the number of H+ ions
+1 for H, -2 for each O, +3 for I