I think it's commutative property of addition (you can change order of addition but in the end it would be the same)
Measure angle ACD = 3x - 2
measure angle BCD = 5x - 20
measure angle ACD = measure angle BCD
3x - 2 = 5x - 20
-2 = 2x - 20
18 = 2x
9 = x
x = 9
measure angle BCD = 5x - 20
measure angle BCD = 5(9) - 20
measure angle BCD = 45 - 20
measure angle BCD = 25
measure angle CDA = 90
measure angle BDC = measure angle CDA
measure angle BDC = 90
measure angle DBF = measure angle BCD + measure angle BDC
measure angle DBF = 25 + 90
measure angle DBF = 115
2/8 × 3/5
1/4 × 3/5
3/20
The answer is: 3/20.
Y=(1/2)x cause the constant variation is 1/2
Answer:
14 sqrt(2)
Step-by-step explanation:
8^2 + sqrt(34)^2 = c^2
=> 64 + 34 = c^2
=> 98 = c^2
=> c = 14 sqrt(2)
Hope this helps! :3
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