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Harman [31]
2 years ago
8

Which exponential function is represented by the table? f(x) = 0. 2(0. 5x) f(x) = 0. 5(5x) f(x) = 0. 5(0. 2x) f(x) = 0. 2(0. 2x)

.
SAT
1 answer:
blagie [28]2 years ago
7 0

Answer:

i think it's f(x)=0. 2(0.2x)

hope this helps

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Complete question;

<em>The distribution of lengths of salmon from a certain river is approximately normal with a standard deviation of 3.5 inches. If 10 percent of salmon are longer than 30 inches, which of the following is closest to the mean of the distribution? 26 inches A 28 inches B 30 inches C 33 inches D 34 inches</em>

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The formula for calculating the z-score is expressed as:

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Given the following parameters

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If 10 percent of salmon are longer than 30 inches, then:

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Using the z table to get the value corresponding to the mean area 0.1.

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Substitute the resulting parameters into the formula to get the mean of the distribution.

z=\frac{x-\mu}{\sigma}\\-1.285=\frac{26-\mu}{3.5}\\-1.285 \times 3.5 = 26 - \mu\\ -4.4975 = 26 - \mu\\\mu = 26 + 4.4975\\\mu = 30.4975\\\mu \approx 30in

Hence the value that is closest to the mean of the distribution is 30inches.

Learn more here: brainly.com/question/15295437

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It is called a participle and it functions as an adjective in this sentence.

Explanation:

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