Of a family's $815 weekly income,$125 usually goes toward groceries. what is the ratio of the amount spent on groceries to weekly income

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm

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.