X + 7 is your answer
Answer:
3 11/12 in.
Step-by-step explanation:
The radius is simply half of the diameter.
7 5/6 divide by 2 = 3 11/12
C
The difference formula for cosine is
cos(x - y) = cosxcosy + sinxsiny
Consider
cos75 = cos(120 - 45)°, then
cos(120 - 45)°
= cos120°cos45° + sin120°sin45° → C
34.074
b
