Answer:
13
Step-by-step explanation:
Using Pythagoras Theorem:
![a^2+b^2=c^2](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2)
Substitute values of a and b:
![5^2+12^2=25+144=169](https://tex.z-dn.net/?f=5%5E2%2B12%5E2%3D25%2B144%3D169)
![c^2=169\\c=13](https://tex.z-dn.net/?f=c%5E2%3D169%5C%5Cc%3D13)
The length of the missing side is 13.
Answer: c=24
Step-by-step explanation: 15×3=45. 8×3=24. Just multiply both the numerator and denominator by 3.
The answer is that his average is 75.5 for the second nine weeks
Answer: x= 1/54
Explained: easy mental math :p