Part a
based on these data, state the most appropriate conclusions dr. aguilera could make about the relationships between the following.
• anxiety and academic performance
• hours sleeping per night and academic performance
part b
explain how each of the following may contribute to the interpretation of dr. aguilera's findings.
• operational definition
• cohort effect

Dis an orderly way to conduct research 

Answer(1)=c; expanded food and nutrition education program; answer(2)=a; elderly and those with health issues; answer(3)=nutrition program for the elderly;

You need to re ask the question with proper

You need to figure out at which x-value does the graph has a tangent line slope of -1.remember, the derivative is the slope of the tangent line. so find the derivative function and set it to equal -1 to find the x-value that will have a tangent line slope of 0.differentiate with the chain rule.    set the derivative to equal -1 and solve for x.      take log base 10 of both sides. also recall that  .    so the x-coord of the point of tangency is .the y-coordinate of this point of tangency can be calculated using the original function:     using point-slope form, the equation of the tangent line is      the x-intercept of this tangent line is when the graph is at y=0.    this rounds off to  .choice c.