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Estimate the following product using scientific notation: (19)(2,120,400).


A. 4 x 10^6

B. 4 x 10^7

C. 2 x 10^7

D. 2 x 10^5

Respuesta :

Answer:

40287600 = B. 4 x [tex]10^{7}[/tex]

Step-by-step explanation:

We first have to do the multiplication of the numbers given:

19 * 2,120,400

=> 40287600

Now we have to figure out how many digits are after the number 4:

4, 0 2 8 7 6 0 0

7 digits

Meaning that we need an exponent of 7 for it to be in scientific notation, giving us with the answer B. 4  x [tex]10^{7}[/tex]

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