Questão 05) Efetue as operações indicadas. A) 3,0times 10^-8.4,0times 10^8= B) 24,0times 10^8:6,0times 10^-9= C) 40,0times 10^10+240,0times 10^9= D) sqrt (8,1)times sqrt (10^11)= E) 1,4times 10^7+3,1times 10^8= F) 9,2times 10^15-6,0times 10^14=

) $$3,0\times 10^{-8} \cdot 4,0\times 10^{8} = 1,2\times 10^{1} = 12$$

B) $$24,0\times 10^{8} : 6,0\times 10^{-9} = 4,0\times 10^{17}$$

C) $$40,0\times 10^{10} + 240,0\times 10^{9} = 4,0\times 10^{11} + 2,4\times 10^{11} = 6,4\times 10^{11}$$

D) $$\sqrt{8,1} \times \sqrt{10^{11}} = \sqrt{8,1} \times 10^{5,5} = 9\times 10^{5,5} = 9\times 10^{5} = 9,0\times 10^{5}$$

E) $$1,4\times 10^{7} + 3,1\times 10^{8} = 1,4\times 10^{7} + 3,1\times 10^{7}\times 10 = 4,5\times 10^{7}$$

F) $$9,2\times 10^{15} - 6,0\times 10^{14} = 9,2\times 10^{14} - 6,0\times 10^{14} = 3,2\times 10^{14}$$