Which formula gives the x-coordinates of the maximum values for y = cos(x)? O ka for any integer k
O kr for k= 0,+2,+4,..
O for any positive integer k
o for k= 0,+2,+4,..

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2

Problem 2. find the exact value of the remaining trigonometric functions. sketch theangle 8 for each problem. (3 points each)(a) tan 0 =o is in quadrant 2