Answer:
x=28
Step-by-step explanation:
vertical angles are congruent
3x-12=72
3x=84
x=28
Answer:
1
Step-by-step explanation:
Rise/run
20 with a number minus what will equal 9. ^_^
Answer: perimeter: 30 in. Area: 221 in
Step-by-step explanation:
Answer:
irrational
Step-by-step explanation:
Use the Pythagorean theorem.
5² + 6² = c²
25 + 36 = c²
c² = 61
7² = 49
6² = 64
61 is between 7² and 8², so it is not rational.