Find a b if a =(2,-8) and b =(-1,4).
A. -1
B. -3
C. sqrt 5
D. sqrt 3

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.

What value of x will make the triangles similar by the sss similarity theorem?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.