It’s 13 and 15 you felllmeeyebebenr
        
             
        
        
        
Answer:
Angle 1 is 58. Angle 2 is 32.
Step-by-step explanation:
The measure of Angle ACB is 90 because C is on the circle and A and B connect to form a diameter of the circle. So, Angle 1 and Angle 2 add up to 90 (total degrees in triangle - 90). Now you can add the expressions the question gave for Angle 1 and Angle 2, and you get 7x + 6. So you have the equation 7x + 6 = 90. Solve the equation and you get x = 12. Now you can plug in that value for x into the expressions for Angles 1 and 2 to find their measures.
 
        
             
        
        
        
Answer:
56.39 nm
Step-by-step explanation:
In order to have constructive interference total optical path difference should be an integral number of wavelengths (crest and crest should be interfered). Therefore the constructive interference condition for soap film can be written as,

where λ is the wavelength of light and n is the refractive index of soap film, t is the thickness of the film, and m=0,1,2 ... 
Please note that here we include an additional 1/2λ phase shift due to reflection from air-soap interface, because refractive index of latter is higher. 
In order to have its longest constructive reflection at the red end (700 nm)

Here we take m=0. 
Similarly for the constructive reflection at the blue end (400 nm)

Hence the thickness difference should be 

 
        
             
        
        
        
2/6 is equal to 4/12 and 3/4 is equal to 9/12 so 3/4 is larger
        
             
        
        
        
Either 1 or 3 - 1 is all positive and 3 is all negative