If cos x = sqrt2/2 and x is a fourth-quadrant angle, evaluate sin 2x. A. -sqrt2
B.-1
C.1

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score