Answer:

Step-by-step explanation:
AC = AB + BC



Add 7 to both sides:


Subtract 7x from both sides:

Divide both sides by 11:


Answer:
15cm
Step-by-step explanation:
- c2=a2+b2 thus do the math and 15 comes
The answer I think it would be -6 right?
Answer:
Yes because sum of 2 line segment is greater than the third side
Step-by-step explanation: