Answer:
First of all, it's the Greatest to least! Second of all, 2/1, 8/9, 7/9, and 2/3.
Step-by-step explanation:
2/1 is 2, 8/9 is 1 more ninth than 7/9, and 2/3 is less third than 1.
 
        
                    
             
        
        
        
Answer – Angle Measure
 Generally speaking, when similarity transformations are performed on a triangle, the angle measure is preserved, whereas the length of the sides may be enlarged or reduced depending on the scale factor of the transformation, thus giving rise to similar triangles with corresponding angles that have exactly the same measure and corresponding sides that are proportional.
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There is a discontinuity at 0 since you can’t divide cos x by 0. So that would be represented in interval notation at (-infinity, 0) U (0, infinity) replace infinity with the symbol
        
             
        
        
        

We have, Discriminant formula for finding roots:

Here, 
- x is the root of the equation.
- a is the coefficient of x^2
- b is the coefficient of x
- c is the constant term
1) Given, 
3x^2 - 2x - 1
Finding the discriminant, 
➝ D = b^2 - 4ac
➝ D = (-2)^2 - 4 × 3 × (-1)
➝ D = 4 - (-12)
➝ D = 4 + 12
➝ D = 16
2) Solving by using Bhaskar formula, 
❒ p(x) = x^2 + 5x + 6 = 0



So here, 

❒ p(x) = x^2 + 2x + 1 = 0



So here, 

❒ p(x) = x^2 - x - 20 = 0



So here, 

❒ p(x) = x^2 - 3x - 4 = 0



So here, 

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The answer is D.
Explanation: The square root of a negative number is imaginary which is another name for a complex number