Calculate the weighted mean of the ror's for each portfolio. based on the results, which list shows a comparison of the overall performance of the portfolio's, from worst to best? ror portfolio 1 portfolio 2 portfolio 3 10.4% $700 $6000 $3500 -29.7% $12,000 $9000 $5500 37.2% $600 $4500 $5750 7.5% $4,400 $2000 $1500 6.3% $250 $1,100 $4500 a- portfolio 3, portfolio 1, portfolio 2 b- portfolio 3, portfolio 2, portfolio 1 c- portfolio 1, portfolio 2, portfolio 3 d- portfolio 1, portfolio 3, portfolio 2

Write a polynomial for a third-degree polynomial with leading coefficient -4

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

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.