H is the altitude of a right triangle, so h²=AD*DC=(20-4)*4=64
h=√64=8
D is the correct answer.
Answer:
2x - 3y
Step-by-step explanation:
Step 1 :
1
Simplify —
4
Equation at the end of step 1 :
1
0 - (— • (12y - 8x))
4
Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
12y - 8x = -4 • (2x - 3y)
Equation at the end of step 3 :
0 - (3y - 2x)
Step 4 :
Final result :
2x - 3y
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Answer:
y=12.73 x=9
Step-by-step explanation:
