5. A can do a piece of work in 8 days which B alone can do in 10 days. In how many days both working
together can do it?

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?