Answer is B. 2.19/Ib (just divide 4 by 8.76)
To convert an angle from degrees to radians, multiply by π/180°.
Your angle is
(-280°)*(π/180°) = -14π/9
The appropriate choice is ...
B) (-14π/9)
Answer:
Ok so first you would have to turn them into improper fractions which is
3
=
and 4
= 
So now that you have made them both improper fractions you have to find common denominators.
To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take
and mutiply both numbers by 2 and get
. Then mutiply both numbers in
by 5 to get a common denominator.

=35 - 44 = -9 so your answer is 
Step-by-step explanation:
I think it's 12x.
I'm not a 100% sure though, but I hope this helps. =^D