Cindy has test scores of 72,80,85,82,77. What does Cindy need to score on her last test for her average grade to be between a 80 and 82?

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.

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*