PSYCHOLOGY A researcher wants to compare math performance scores of high school juniors who are located in various urban areas. The researcher will most likely conduct the research by using which descriptive research method?
A. naturalistic observation
B. longitudinal study
C. cross-sectional study
D. case study

A naturalistic study
Because it’s a research method commonly used by psychologists. This technique involves observing involves studying the spontaneous behavior of participants in natural surroundings. The researcher simply records what they see in whatever way they can.

The criminological theory that alan used to address the problem is routine activity theory.  in this situation, the community was not supported by the political party. as a result, alan was forced to resort to crime because of the status that his family is currently in. 

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.