Question: Use the four-step procedure for solving variation problems given on page 445 to solve Exercises 2136. The illumination provided by a cars headlight varies inversely

Use the four-step procedure for solving variation problems given on page 445 to solve Exercises 21–36.

The illumination provided by a car’s headlight varies inversely as the square of the distance from the headlight. A car’s headlight produces an illumination of 3.75 foot-candles at a distance of 40 feet. What is the illumination when the distance is 50 feet?

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