Yes it is congruent to5x-1
Answer:
hey im sry for ditching on u so many times jgilpin i was just so busy w school and sh. it and i couldnt talk then, but i an talk now and in sry if i pis. sed u off :(
Step-by-step explanation:
Step 1: Convert
, which is in radians into degrees. To convert it multiply by 

900/12
75
Step 2: 75 degrees isn't on the unit circle but 45 degrees and 30 degrees is. Since 45 + 30 = 75 you can use the cosine of 45 and 30 to find the exact value
cos45 = 
cos30 =
Step 3: Add the cos45 and cos30 to get cos5pi/12

Hope this helped!
Answer:
9
Step-by-step explanation:
The denominator of a fraction is always the bottom number, while the top number is always the numerator.
The all go over 18 so put them all over 18
16/18+12/18+3/18=31/18
31/18 or 1.722222222........