Answer:
( 2 , 1 ) , ( 4 , 1 ) , ( 4 , 4 ) .......
Answer:
b
Step-by-step explanation:
There are three kinds of statement that we could construct base on the given where as Vertical angels are congruent. First is converse: If angle 1 is 90 degree then angle 2 is 90. Second is Inverse: If angle 2 is not 90 then angle 1 is not. Third is Contrapositive: If angle 2 is not 90 then angle 1 is not 90 also.
1+tan^2(y)=1/cos^2(y)
cos 2y -1=cos^2(y) -sin^2(y)-cos^2(y) -sin^2(y)
The answer is 9:16 just add 9+7=16 and then we know out of the 16 nine were dogs so 9:16
