What are the measures of angles a, b, and c .Show your work and explain your answers.​

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.

Is a positive integer raised to a negative power always positive

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?