A is equal to -1/2
B is equal to .866
C is equal to 1/2
D is equal to -.866
Therefore your correct answer is c
Step-by-step explanation:
Answer:
4 5/6
Step-by-step explanation:
10 1/2 - 5 2/3
5 3/6- 4/6
4 9/6-4/6
4 5/6
Answer:
114.89 degrees
245.11 degrees
Step-by-step explanation:
cos is negative in the second and third quadrant ("pointing" on the x-axis to the left).
so, the first answer for the second quadrant is
114.89 degrees.
the answer for the third quadrant is then backwards the same angles from a full 360 degree rotation
360 - 114.89 = 245.11 degrees
30-f+8f=30
30+7f=30
Move +30 to the right side. Sign changes from +30 to -30.
30-30+7f=30-30
7f=0
Divde by 7
7f/7=0/7
Cross out 7 and 7, divide by 7. Becomes 1*1*f=f
f=0
Answer: f=0
