Answer:
Please see attached picture for full solution.
Sorry, I'm not sure how to do Q7 :(
Answer:
32y^2-32
Step-by-step explanation:
4y^2+4(7y^2-8)
4y^2+28y^2-32
32y^2-32
if you need extra steeps explaining then plz let me know and I will help :)
Answer:
See explanation
Step-by-step explanation:
Consider triangles CAX and BAX. In these triangles,
- given
- given
- reflexive property
By SAS postulate, 
Congruent triangles have conruent corresponding parts. So,

Consider triangles CXY and BXY. In these triangles,
- proven
- given
- reflexive property
By SAS postulate, 
Congruent triangles have conruent corresponding parts. So,

Ok, so we know that the product of means something added, and we are given that eleven and a number are less than 53. So the equation is 11+X<53.
-4.5 might be the answer im not very sure but yeah