10. RADAR On a radar screen, a plane located at A(-2, 4) is flying toward B(4,3). Another plane, located at CC-3, 1), is flying toward D(3,0). Are the planes' paths
perpendicular? Explain.

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Which of the following contains a variable?

Do,h = (7, 9) (14, 18) the scale factor is