Adoctor at a local hospital is interested in estimating the birth weight of infants. how large a sample must she select if she desires to be 99% confident that the true mean is within 3 ounces of the sample mean? the standard deviation of the birth weights is known to be 5 ounces.

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

For the equations below which statement is true ? -2x=14 6x=-42