What would you estimate for the length of a bass clarinet, assuming that it is modeled as a closed tube and that the lowest note it can play is a Db whose frequency is 69.3 Hz

Which of the following shows the length of the third side, in inches, of the triangle below

The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.

Find the solution of this system of equations -7x+y=-20 9x-3y=36