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Mathematics 12 Online
OpenStudy (anonymous):

For a 225-watt bulb, the intensity i of the light in lumens at a distance of x feet is i = 225/x^2. A. What is the intensity of light 5ft from the bulb? B. Suppose your distance from the the bulb doubles. How does the intensity of the light change? Explain. Absolutely NEED to show ALL my work. Anyone who can walk me through the whole problem gets best response.

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