Answer:
1. = 55
2. = 115
3. = 90
4-9. sorry i dont know
Second page:
1. right
2. acute
3. acute
4. acute
5. right
6. acute
7. obtuse
8. acute
9-12. acute
Step-by-step explanation:
i dont know how to explain, and again sorry for questions 4-9
Answer:
21
Step-by-step explanation:
the answer to everything is 21
X + 2y = 1 ______×1
4x + y = 11 _____ ×2
x + 2y = 1
8x + 2y = 22
8x + 2y = 22
(-)
x + 2y = 1
_____________
7x = 21
x = 3
3 + 2y = 1
2y = 2
y = 1
i am a mathematics teacher. if anything to ask please pm me
There is not enough detail for me to answer