Answer:
D(- 2, 9 )
Step-by-step explanation:
Under a reflection in the y- axis
a pont (x, y ) → (- x, y )
Given D'(2, 9 ) is the image of D, then
D(- 2, 9 ) ← are the original coordinates
Since D(- 2, 9 ) → D'(2, 9 )
Answer: s=12
Step-by-step explanation:
s(12-3)=108
12s-3s=108
9s=108
Divide both sides by 9
s=12
Answer:
Q5) 7
Q6) 4
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Step-by-step explanation:
Answer:
I believe the answer is 7
Answer:

Step-by-step explanation:
The given ratio is 
9 is the common factor of 18 and 27
divide numerator and denominator by 9

hence
is proportion with 