Answer:
9
Step-by-step explanation:
3/4 = x/12
Cross-multiply: 36 = 4x
x = 9
Answer:
2n+22
Step-by-step explanation:
(n+11)2=
2n+22
Answer:
add 8 and 9 17
Step-by-step explanation:
Answer:
Line a and b
Step-by-step explanation:
Answer: 53
Step-by-step explanation:
They are both right legs. Use a^2+b^2=c^2.
A= 28^2 B=45^2
A= 784 B= 2025. 2025+ 784= 2809 (radical 2809) To simplified is 53