M∠1=93∘ and m∠2=87∘. Two intersecting lines. Angle 1 is opposite angle 3. Angle 2 is opposite angle 4.

What is m∠4?

Enter your answer in the box.

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

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).