An incoming MBA student took placement exams in economics and mathematics. In economics, she scored and in math . The overall results on the economics exam had a mean of and a standard deviation of , while the mean math score was , with a standard deviation of . On which exam did she do better compared with the other students?

2.56 is the width of the garden

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this

is there more to this question?