Pls help with the correct answer fast plsmaths congruence of trianglepls pls pls
1 answer:
Answer:
x = -1 or
x = -7
Step-by-step explanation:
Given DAB and BCD are similar :
2x^2 + 7 = x^2 - 8x make the left side of equation 0 by exporting all terms to right side
2x^2 - x^2 + 8x + 7 = 0 add like terms
x^2 + 8x + 7 = 0
(x + 1) * (x + 7) = 0 in this case x is either -1 or -7
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Answer:
50
Step-by-step explanation:
6/100=3/y
Let y be the total number of items on the test
[cross multiply]
6×y =3×100
6y = 300
divide both sides by 6
y = 50
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The one on the right would be greater
2a plus 6 equl eight i hink so