The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. There are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. How many times does the heart beat in one year?

Respuesta :

Answer:

[tex]4.1975\cdot 10^{7}[/tex]

Step-by-step explanation:

We are told that the average human heart beats [tex]1.15\cdot 10^{5}[/tex] times per day and there are [tex]3.65\cdot 10^{2}[/tex] days in one year.

To find number of heart beats in one year we will multiply number of heart beats in one day by number of days in one year.

[tex]1.15\cdot 10^{5}\times 3.65\cdot 10^{2}[/tex]

Now we will solve this problem using exponent properties.

[tex]1.15 \times 3.65\cdot 10^{2+5}[/tex]

[tex]1.15 \times 3.65\cdot 10^{7}[/tex]

[tex]4.1975\cdot 10^{7}[/tex]

Our answer is in scientific notation we can represent it in standard form as [tex]4.1975\cdot 10^{7}=4.1975*10000000=41975000[/tex] times.

Therefore, average human heart beats in one year [tex]4.1975\cdot 10^{7}[/tex] or 41975000 times.

Answer:

4.2*10^7

Step-by-step explanation:

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