Find the circumference of the following circle. 5 mm

O 13.14 mm
O 30 mm
O 15.7 mm
O 31.4 mm

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.

Ined this is due tomorrow and i dont know the answer can you find all the exponents

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form