c^2 = a^2 + b^2 - 2(ab)(cos C)
c^2 + 2(ab)(cos C) = a^2 + b^2
2(ab)(cos C) = a^2 + b^2 - c^2
cos C = (a^2 + b^2 - c^2) / 2ab - Answer choice E
Hope this helps! :)
Answer: − b
/ 3 + 67108864
Step-by-step explanation:
Answer:
The first Answer is -29
The Second one is -44
The third one is 0.2/ or 1/5
The fourth one is 0.75
The Final one is s=0
Answer:
1
Step-by-step explanation:
It has only 1 line of symmetry. The line is a vertical line that passes through the top vertex.
Answer: 1
Answer:
Hey there!
There are a total of 20 children, and 2+6, or 8 are girls.
Thus the probability of choosing a girl is 8/20, or 2/5.
There are 2 left handed girls, so the probability is 2/20, or 1/10.
Hope this helps :)