Respuesta :
Answer:
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Step-by-step explanation:
Find 4 x 10(5) - 9 x 10(2)
4 x 100000 - 9 x 100
400000 - 9,000
391000
A) 3.001 × 102 = 306.102
B) 3.001 × 105 = 315.105
C) 3.991 × 102 = 407.082
D) 3.991 × 105 = 419.055
