You are deciding between two carnivals to attend. Carnuval A charges an entry fee of $15. Carnival B charges $5 for entry, plus $2 per ride(r) a)Write an equation that determines how many rides, r, you will need to go on for the cost to be the same.
B)Enter the number of rides it will take for the cost to be the same.

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.