Find 3x-4y=0 1x-1y=1 solving with the 1 factor method

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer