Question: Find the unit vector parallel to the vector v = 3i + 4j - 5k.
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What is the speed in miles per hour if a car travels a distance of 150 miles in 3 hours?
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What is the value of the expression log(x) / ln(x), where log(x) represents the logarithm of x to an arbitrary base and ln(x) represents the natural logarithm of x?