This is not a function but the domain is x and the range is going to y so the first is the domain and the second box it the range
21, it says it right in the name.
The answer is 4 because there r three 3 2s
The ratio 4 to 7. would be 12 and 21
Answer:
E
Step-by-step explanation:
The problem says that triangle BDC lies in the plane k, which means that whatever angle is formed by another point beyond this plane with any of the three segments that form BDC (BD, DC, and BC) is the same as the angle formed by the line connecting the point and the plane.
Here, we're given that AD⊥DC, which means AD forms a 90° angle with DC. Then, since DC is already on the plane, we already know for sure that AD is definitely perpendicular to plane k.
Thus, the answer is E (none of these).
