WILL GIVE 20 POINTS Select the correct answer from each drop-down menu. Laura and Becky are each graphing a transformation of the parent cosine function.
Laura's function is a transformation where the parent function is horizontally compressed by a factor of 1/3 and is reflected over the x-axis.
Becky's function is defined by the equation f(x) = 3cos(X-pi).
Determine which graph belongs to each student.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)