Jill decides to study for her biology final exam by studying for 20 minutes each day for the next three weeks, as opposed to studying all the material at once. which study technique is she using?

Jill is using a technique known as Spaced Repetition. In this technique, the learner studies in short periods with great frequency over a long period of time, frequently testing herself along the way. This aids in long-term retention for the learner. 

The opposite of this technique would be cramming, also known as block learning. Spaced Repetition is widely accepted as the superior study technique. 

Iam pretty sure it is c.

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.