ARMYFOLIFE ARMYFOLIFE
  • 03-04-2020
  • Mathematics
contestada

What is the product of 4.5 ⋅ 105 and 1.6 ⋅ 102? (1 point)

6.1 ⋅ 10^7

7.2 ⋅ 10^7

6.1 ⋅ 10^10

7.2 ⋅ 10^10

Respuesta :

Аноним Аноним
  • 05-04-2020

Answer:

Answer is option b) 7.2×10^7

Step-by-step explanation:

[tex]we \: know \: that \: \\ {a}^{m} \times {a}^{n} = {a}^{m + n} \\ {10}^{5} \times {10}^{2} = {10}^{5 + 2} \\ = {10}^{7} \\ 4.5 \times 1.6 = 7.20 \\ = 7.2 \\ hence \: the \: answer \: is \: 7.2 \times {10}^{7} [/tex]

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