Kevin delivers newspapers in his town every morning. The amount he earns from delivering newspapers is given by y=30x+18, where y is the amount he earns in cents and x is the number of houses he delivers newspapers to. However, he is paid a certain amount even if he doesn’t deliver any newspapers on a certain day. How much is he paid if he doesn’t deliver any newspaper?

Which linear inequality is represented by the graph? !

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.