Question

a)500mm2 + 0,000125 hm2 + 25000000 cm2 + 34m2 =? metri?
b)2,8g/cm3 =?kg/m3​

Answer 1

$a) \ 500 \ mm^2+0,000 \ 125 \ hm^2+25 \ 000\ 000 \ cm^2+34 \ m^2=\\=0,0005 \ m^2+1,25 \ m^2+2 \ 500 \ m^2+34 \ m^2=\boxed{2 \ 535,2505 \ m^2}; \\ b) \ 2,8 \ g/cm^3=0,0028 \ kg/0,000 \ 001\ m^3=\boxed{2 \ 800 \ kg/m^3};$