Answer:
85 degrees
Step-by-step explanation:
Question:
Solution:
Note that :
![x^2+9x\text{ + 20 = 1(x+4)(x+5)}](https://tex.z-dn.net/?f=x%5E2%2B9x%5Ctext%7B%20%2B%2020%20%3D%201%28x%2B4%29%28x%2B5%29%7D)
where the left hand of the equation represents a trinomial and the right hand of the equation represents a product of two binomials. Then, we can conclude that the correct answer is:
B
Answer:
The missing side length is 3 units long.
Step-by-step explanation:
Use the Pythagorean Theorem where c²=a²+b²,
c=2√3, c²=12
a²=√3, a²=3
Solving for the missing side yields a side length of 3.