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iren [92.7K]
3 years ago
5

Which expression is equivalent to 3^4 times 3^-9

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:   3^4 · 3^-9 = 3^4 · 1/3^9

Step-by-step explanation:

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Standard form of 5y=35+10x what is the answer
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3 years ago
A typical person has an average heart rate of 70.0 70.0 beats/min. Calculate the given questions. How many beats does she have i
harina [27]

Answer:

a) 2.2 × 10⁸ beats

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Step-by-step explanation:

Data provided in the question:

Average heart rate of a typical person = 70.0 beats/min

Now,

In the given cases, the significance is on the significant figures after the decimal

Therefore,

the answer is will be provided accordingly

Now,

a) Time = 6.0 years

[since 1 significant figure after decimal. answer will be give in  1 significant figure after decimal ]

time in minutes = 6.0 × 365 × 24 × 60

= 3.1 × 10⁶ minutes

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= 70 × 3.1 × 10⁶

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time in minutes = 6.00 × 365 × 24 × 60

= 3.15 × 10⁶ minutes

Total beats = Average heart rate × Time

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= 2.20 × 10⁸ beats

c) Time = 6.000 years

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time in minutes = 6.000 × 365 × 24 × 60

= 3.154 × 10⁶ minutes

Total beats = Average heart rate × Time

= 70 × 3.154 × 10⁶

= 2.207 × 10⁸ beats

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Step-by-step explanation:

Read

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