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8090 [49]
2 years ago
15

Estimate 760 X 55 by first rounding each number so that it has only 1 nonzero digit.

Mathematics
1 answer:
kobusy [5.1K]2 years ago
4 0

Answer:

48000

Step-by-step explanation:

After rounding each number to the criteria stated, we get the question 800 * 60. Multiply the 8 and the 6 and add the same number of zeros that are there right now. this is 48 + "000" so 48000.

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Suppose that the number of bacteria in a certain population increases according to an exponential growth model. A sample of 2600
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y=y_0e^{rt}\\\\2873=2600e^{2.5r}\\\\\dfrac{2873}{2600}=e^{2.5r}\\\\1.105=e^{2.5r}\\\\\text{Taking log on both the sides}\\\\\ln 1.105=2.5r\\\\0.0998=2.5r\\\\r=\dfac{0.0998}{2.5}\\\\r=0.0399\times 100\\\\r=3.994\%

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