How many four letter words can be made from the letters X, B, O, M, T?

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

What is the perimeter of square abcd? units units 28 units 37 units