The price per mp3 download 5 years ago was $0.99. Now, each mp3 download costs $1.29. Which statement is true? A The average change in the price per mp3 download was an increase of $0.06 per year because 0.3 5 = -0.06.

B The average change in the price per mp3 download was a decrease of $0.06 per year because 03 = -0.06

C The average change in the price per mp3 download was an increase of $0.06 per year because 0,3 = 0.06.

D The average change in the price per mp3 download was a decrease of $0.06 per year because 3 = 0.06.​

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

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.