hannah typed her term paper at the rate of 36 words per minute. After typing for 12 mins, she had 648 words left to type. Let f(t) be the number of words hannah would be left to type after typing for t minutes. write a formula for f(t)

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The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

What does independent variable and dependent variable mean in math?