Hey! Hope that I can help.
-√17 belongs in only one number set: irrational.
Answer:
Nocomplanar? Right because they’re not all in the same place?
Step-by-step explanation:
Answer:
A'B'C'D' was dilated by 4
Step-by-step explanation:
The distance from B' to C' is 1.
The distance from B to C is 4.
4/1=4
3pi/7 < pi/2 because 3/7 < 1/2, and pi/2 is a right angle. Conclusion: the angle opposite side a is an acute angle. In this situation the triangle could be a right triangle, in which case C would be true, but it does not have to be a right triangle, so don´t choose C. Similarly, it could be an acute triangle, in which case B would be true, but it does not have to be, so don´t choose B. Also, A says the angle opposite side a is obtuse, which is false. So don´t choose A. That leaves D, which says the angle opposite side a is acute, which we know is true. So the answer is <span>D. b^2 + c^2 > a^2</span>
