. For the polynomial function f(x) = -2x^4 + 8x^2 - 8, find all local and global extrema. A: no local extrema exist

B: the only extrema point is (0,-8)

C:no global extrema exist

D: the local and global extrema are: (-/2,0),(0,-8) and (/2,0)

Which function has an inverse function? a.f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is