Apendulum in an antique clock swings above a tabletop. the number of centimeters, c, that the tip of the pendulum is from the tabletop is a function of time, t, in seconds. the function that models the distance of the tip of the pendulum from the tabletop is c(t) = 2(cos 4πt) + 12. how high is the pendulum when t = 1/4 second.

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

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)