Answer:
<h3>
5.4 </h3>
Step-by-step explanation:
ABC is a right angle triangle.
Therefore,

Plug the values

Apply cross product property

Calculate

After rounding to the nearest tenth, the answer will be:

Hope this helps...
Best regards!!
Answer:

Step-by-step explanation:
![(f-g)(x) = f(x) - g(x) = [4x^2 + 5x -3] - [4x^3 - 3x^2 + 5]](https://tex.z-dn.net/?f=%28f-g%29%28x%29%20%3D%20f%28x%29%20-%20g%28x%29%20%3D%20%5B4x%5E2%20%2B%205x%20-3%5D%20-%20%5B4x%5E3%20-%203x%5E2%20%2B%205%5D)

Answer:
125.66 cm²
Step-by-step explanation:
pi × (7² - 3²)
40pi cm²
125.6637061 cm²