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georgette needs to earn a upper c in her algebra class. her current test scores are 66 comma 74 comma 66 comma and 78. her final exam is worth 4 test scores. in order to earn a upper c georgette's average must lie between 70 and 79 inclusive. what range of scores can georgette receive on the final exam to earn a upper c in the course?

Asquare parking lot has 6,400 square meters what is the length in meters

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%