PLEASE PLEASE HELP
Using the diagram at the right, Find the measures of the following angles:
(FC is tangent to the circle)
m∠AEC=34
mDE=85
-I also put the question as one of the pictures-

1. m∠ABC=

2. m∠DBC=

3. m∠ACE=

4. m∠DAE=

5. m∠ADE=

6. m∠FCB=

7. m∠CED=

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!