Aset of data has a mean of 12 and a standard deviation of 3. a data point of the set has a z-score of 1.3. what does a z-score of 1.3 mean? a. the data point is 1.3 standard deviations away from 3. b. the data point is 1.3 standard deviations away from 12. c. the data point is 3 standard deviations away from 1.3. d. the data point is 3 standard deviations away from 12.

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

10% of 1,900,000. show me how you got the answer

What statement is true? 2x^2-9x+2=-1