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3 years ago

PLEASE HELP ASAP!!!!

Mathematics

2 answers:

Kisachek [45]3 years ago

8 0

Answer:

64, because its square root is 8.

49, because its square root is 7.

144, because its square root is 12.

4, because its square root is 2.

Step-by-step explanation:

mezya [45]3 years ago

3 0

64, because its square root is 8.
49, because its square root is 7.
144, because its square root is 12.
4, because its square root is 2.

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Step-by-step explanation:

We are told that the average human heart beats $1.15\cdot 10^{5}$ times per day and there are $3.65\cdot 10^{2}$ 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.

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Now we will solve this problem using exponent properties.

$1.15 \times 3.65\cdot 10^{2+5}$

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

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

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