Answer:
27
Step-by-step explanation:
angle adjacent to 163 = 27
x=27 by alternate angles equal principle.
I'm pretty sure it's 4x+6x²-9
V=4pi*r^3 /3 volume of sphere
The last one best models the situation
Answer:
28.9
Step-by-step explanation:
Using cosine, we get the equation cos(21)=x/31. Solving cos(21), we get about 0.933. Then we multiply by 31 to get about 28.9.
