If a = 5 and b = 7, what is the measure of ∠a? (round to the nearest tenth of a degree)

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 value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Describe how making an ‘and’ compound sentence effects your solution set