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Alexxandr [17]
3 years ago
12

2^5*2^3/4^4 plz answer

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

1

Step-by-step explanation:

Because they both of the same base, we can merge 2^5 and 2^3 into one term: 2^8 (2^(3+5))

4 is = 2^2 so we can change 4^4 to 2^8.

(2^(2*4)).

Thia means we now have 2^8/2^8 which is 1.

As anything divided by itself is just 1.

Hope this helped!

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suter [353]

Answer:

The probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is P=0.412.

Step-by-step explanation:

We know the population proportion π=0.8, according to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation.

If we take a sample from this population, and assuming the proportion is correct, it is expected that the sample's proportion to be equal to the population's proportion.

The standard deviation of the sample is equal to:

\sigma_s=\sqrt{\frac{\pi(1-\pi)}{N}}=\sqrt{\frac{0.8*0.2}{500}}=0.018

With the mean and the standard deviaion of the sample, we can calculate the z-value for 0.79 and 0.81:

z=\frac{p-\pi}{\sigma}=\frac{0.79-0.80}{0.018} =\frac{-0.01}{0.018} = -0.55\\\\z=\frac{p-\pi}{\sigma}=\frac{0.81-0.80}{0.018} =\frac{0.01}{0.018} = 0.55

Then, the probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is:

P(0.79

3 0
3 years ago
Converting the following =2,5hrs to minutes​
Doss [256]

Answer:

150 minutes

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Answer:

15%

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900/6000

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