See attachment for math work and answer.
Answer:
C. D:{0, 1, 2, -4}- R:{1, -3, -4}
Step-by-step explanation:
Factor because if we have
yz=0 then we can assume y and/or z=0
so factor
so the easiest way is to find what 2 numbers add to -6 and multiply to get 9 so
we know that they must be both - because we must have x+x=(-) and x^2=+ so therefor they must be negative
factors of 9=3 and 3 so
-3 and -3
-3+-3=-6 perfect
(z-3)(z-3)=0
set each to zero
z-3=0
add 3
z=3
z=3 is the answer
<u>Ratio of two angles are 6:13.</u>
So, let the one angle be 
and another be 
As we know that,
Sum of all interior angles of a quadrilateral = 
So let's sum up the given angles,
Hence,
So, First angle 
Second angle 
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Hope it helps you:)
