$\"\"$

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(a)

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The function is $\"\"$ .

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Where, $\"\"$ represents the numberof eroded or leaky primary O-rings and $\"\"$ is the Fahrenheit temperature.

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Find the leaky primary O-rings at a temperature of $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Therefore, the leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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$\"\"$

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(b)

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Find the leaky primary O-rings at a temperature of $\"\"$ .

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The function is $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Therefore, the leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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$\"\"$

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(c)

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Find the leaky primary O-rings at a temperature of $\"\"$ .

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The function is $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Therefore, the leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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$\"\"$

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(d)

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Graph:

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Graph the function $\"\"$ .

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$\"\"$

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Observe the graph:

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The predicted number of eroded or leaky O-rings are $\"\"$ and $\"\"$ and $\"\"$ of temperatures are $\"\"$ and $\"\"$ and $\"\"$ .

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$\"\"$

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(a) The leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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(b) The leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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(c) The leaky primary O-rings at a temperature of $\"\"$ is $\"\"$ .

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(d)

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Graph of the function $\"\"$ is :

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$\"\"$

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Observe the graph:

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The predicted number of eroded or leaky O-rings are $\"\"$ and $\"\"$ and $\"\"$ of temperatures are $\"\"$ and $\"\"$ and $\"\"$ .