C^2=a^2+b^2-2abcosC
13^2=10^2+11^2-2×10×11×cos(°)
169=100+121-220cos(°)
220cos(°)=100+121-169
220cos(°)=52
cos(°)= 13/55
°=cos-1(13/55)
°=76.328°
The answer should be the third one
Answer:
both outputs are x so f(x) and g(x) are inverses of each other
Step-by-step explanation:
Answer:
12 shirts
Step-by-step explanation:
You cant have one fourth if a shirt so if you have 12 yards with one shirt needing 1 yard you get 12
Answer:
6
Step-by-step explanation:
2 to the power of 1 is 2, anything to the power of one is the original number itself. 3*2=6
