nina already has 24 hair bands, and additional hair bands are priced at 1 for a dollar. How much money does nina need to spend on new hair bands in order to own a total of 47 hair bands

How are sas and sss used to show that two triangles are congruent?

Determine the area of a triangle with (see picture below)

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.