What is the quotient StartFraction negative 8 a Superscript 8 Baseline b Superscript negative 2 Baseline Over 10 a Superscript negative 4 Baseline b Superscript negative 10 Baseline EndFraction in simplified form? Assume a not-equals 0, b not-equals 0.

Negative StartFraction 4 a Superscript 12 Baseline b Superscript 8 Baseline Over 5 EndFraction
Negative StartFraction 4 a Superscript 32 Baseline b Superscript 5 Baseline Over 5 EndFraction
StartFraction a Superscript 12 Baseline b Superscript 8 Baseline Over 80 EndFraction
StartFraction a Superscript 32 Baseline b Superscript 5 Baseline Over 80 EndFraction

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.