Answer: 3. (d-5)x2
4. (I don't know)
5.(25+h)/f^3
Step-by-step explanation:
Answer:
x = 12.1243557....
14² = 7² + x²
Isolate x.
x² = 14² - 7²
x² = 196 - 49 = 147
√x² = √147
x = √147 = 12.1243557....
