When ever you combine different elements the chemical properties change because elements are different , unless you combine the exact same elements.
Answer:
70
Step-by-step explanation:
By exterior angle theorem:
![(2x + 12) \degree = 112 \degree + 180 \degree - 2x \degree \\ \\ (2x + 12) \degree = 292 \degree - 2x \degree \\ \\ (2x + 12) \degree + 2x \degree = 292 \degree \\ \\ (2x + 12 + 2x) \degree = 292 \degree \\ \\ (4x + 12) \degree = 292 \degree \\ \\ 4x + 12 = 292 \\ \\ 4x = 292 - 12 \\ \\ 4x = 280 \\ \\ x = \frac{280}{4} \\ \\ x = 70](https://tex.z-dn.net/?f=%282x%20%2B%2012%29%20%5Cdegree%20%3D%20112%20%5Cdegree%20%2B%20180%20%5Cdegree%20-%202x%20%5Cdegree%20%5C%5C%20%20%5C%5C%20%282x%20%2B%2012%29%20%5Cdegree%20%3D%20292%20%5Cdegree%20-%202x%20%5Cdegree%20%5C%5C%20%20%5C%5C%20%282x%20%2B%2012%29%20%5Cdegree%20%20%2B%202x%20%5Cdegree%20%3D%20292%20%5Cdegree%20%5C%5C%20%20%5C%5C%20%282x%20%2B%2012%20%2B%202x%29%20%5Cdegree%20%3D%20292%20%5Cdegree%20%5C%5C%20%20%5C%5C%20%284x%20%2B%2012%29%20%5Cdegree%20%3D%20292%20%5Cdegree%20%5C%5C%20%20%5C%5C%204x%20%2B%2012%20%20%3D%20292%20%20%5C%5C%20%20%5C%5C%204x%20%3D%20292%20-%2012%20%5C%5C%20%20%5C%5C%204x%20%3D%20280%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20%5Cfrac%7B280%7D%7B4%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%2070)
Yes, people need to put the answers. Otherwise, it is just pointless to even ask your question.
Answer:
sinB = 21/75
tanB = 21/22
Step-by-step explanation:
sinΦ = Height / Hypotenuse
tanΦ = Height / Base