Take a walk. the centers for disease control monitors the physical activity level of americans. a recent survey on a random sample of 23,129 americans yielded a 95% confidence interval of 61.1% to 62.9% for the proportion of americans who walk for at least 10 minutes per day.

The step function g(x) is defined as shown. what is the range of g(x)? ***answer choices in picture.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

Find the domain of the following expression: 1/(√x)-2