Which of the sets of ordered pairs represents a function?
a = {(1, −2), (3, −5), (5, 2), (7, 5)}
b = {(4, 2), (4, −2), (9, 3), (9, −3)}
only a
only b
both a and b
neither a or b

Which best describes the transformation that occurs in the graph? a) dilation b) reflection c) rotation d) translation

In a sample of 200 residents of georgetown county, 120 reported they believed the county real estate taxes were too high. develop a 95 percent confidence interval for the proportion of residents who believe the tax rate is too high. (round your answers to 3 decimal places.) confidence interval for the proportion of residents is up to . would it be reasonable to conclude that the majority of the taxpayers feel that the taxes are too high?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.