Answer:
108ft³
Step-by-step explanation:
V=(base area) (h/3) = 81 (4
/3) =108ft³
Answer: Debería ser 7
Step-by-step explanation:
The two labeled angles are alternate interior angles, and as such, they are the same.
From this result you can build the equation

and solve it for x: subtract 13x from both sides to get

and add 2 to both sides to get

Check: if we plug the value we found we have

So the angles are actually the same, as requested.
Answer:

Step-by-step explanation:
First, we have to write 8 + x, but since it's half of that we write it as a fraction with a 2 on the bottom to halve it.
Answer:
tan65°
Step-by-step explanation: