the ratio of the diffusion rates of two gasses is given by the formula r1/r2=square root m2/square root m1 wherem1 and m2 are the masses of the molecules of the gasses. find r1/r2 if m1=12 units and m2=30 units. your answer should be in the simplified radical form

Place the following steps in order to complete the square and solve the quadratic equation,

In the diagram of circle o, what is the measure of zabc?

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.