Which of the following are identities? a) sin^2x - cos^2x = 1 . b) sin^2x = 1 - cos^2x . c) tan^2x = 1 + sec^2x . d) cot^2x = csc^2x - 1

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Ajar of gumballs contains 4 reds, 2 greens, and 6 blues. what is the probability of getting two blues in a row without replacement?

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.