12.50 espero que te sirva :)
        
             
        
        
        
Answer:

Step-by-step explanation:
Given
 --- Amplitude
 --- Amplitude
 --- Right phase shift
 --- Right phase shift
Required
Identify the function
A sinusoidal function is defined as:

Substitute values for A and C

By comparison, only option (D) has the above format where

Hence (D) is correct
 
        
             
        
        
        
Answer:
supplementary and straight
Step-by-step explanation:
1. angle D and angle B add up to make a 180 degree angle so they are supplementary.
2. A and C each equal 180 degrees (straight angle= 180 degrees)
 
        
             
        
        
        
Answer:
Step-by-step explanation:
area =l^2
=7^2
=49 km^2
 
        
                    
             
        
        
        
Side angle side, angle angle angle, ot angle side angle