A lighthouse is on an island 8 miles from a long straight shoreline. When a boat is directly between the lighthouse and the shoreline it is 2 miles from the lighthouse and 6 miles from the shore. As it sails away from the shore and the lighthouse, it continues so that the difference in distances between boat and lighthouse and between boat and shore is always 4 miles Is it a parabola or a hyperbola

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.