Javier worked for 5 hours on his science project. the number of hours emilia worked on her project is represented by the equation shown. 5 × 2 = 10 which statement accurately compares the number of hours the two students worked? javier worked for twice as long as emilia. javier worked for 5 times as long as emilia. emilia worked for twice as long as javier. emilia worked for 5 times as long as javier.

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the

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.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?