A livestock company reports that the mean weight of a group of young steers is 1126 pounds with a standard deviation of 92 pounds. Based on the model N(1126,92) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1000 pounds? c) between 1250 and 1300 pounds?

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?

Which of the following is not a subset of {1,2,3}?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.