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jonny [76]
2 years ago
15

2. A physical fitness researcher devises a test of strength and finds that the results are normally distributed with a mean of 1

10 pounds and a standard deviation of 10.4 pounds. If a subject is randomly selected and measured, find the probability of a score between 110 and 128 pounds. (5
Mathematics
1 answer:
julia-pushkina [17]2 years ago
7 0

Answer:

Step-by-step explanation:

A physical fitness researcher devises a test of strength and finds that the results are normally distributed with a mean of 110 pounds and a standard deviation of 10.4 pounds. If a subject is randomly selected and measured, find the probability of a score between 110 and 128 pounds. (5

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Answer:

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Step-by-step explanation:

Standard form:

f(x)=x^2-2x-6

Vertex form:

y=(x-h)^2+k

(h, k) is the vertex

x is the coordinate of the vertex

To find x use the formula:

x=\frac{-h}{2a}

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x=\frac{-(-2)}{2(1)}=1

Substitute x in equation:

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Substitute h, and k into the vertex formula:

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Answer:

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Step-by-step explanation:

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