A car can travel 21 mi for each gallon of gasoline. The function d(x) =21x
represents the distance d(x).
in miles, that the car can travel with x gallons of gasoline. If the car's fuel tank holds 15 gallons, how many
miles would you predict the car to travel?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

What is the value of the product (3-2i)(3+2i)?

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.