Justin’s doctor said that the expression x+y+5/2, where x and y are his parents’ current heights in inches, gives an estimate of how tall justin will be as an adult. justin’s work evaluating the formula is shown below. mom’s height = 54 inches dad’s height = 71 inches 71+54+5/2 = 71+27+5=130 inches what error did justin make? he should have made x equal 54 and y equal 71. he should have added the values in the numerator before dividing by 2. he should have divided the 71 by 2 instead of the 27. he should have made the numerator 76 + 59.

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.