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Dominik [7]
3 years ago
7

(6y^2-9y+4)-(-7y^2+5y+1)

Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer and explanation:

(6y^2-9y+4)-(-7y^2+5y+1) multiply the - into -7y^2+5y+1

6y^2-9y+4+7y^2-5y-1  Now add, or subtract, everything together.

(13y^2-14y+3) Answer

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Question 20
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The distance between the bottom of the lighthouse and the boat is 77.6m.

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The lighthouse and the boat would form a right triangle. The height would be the height of the lighthouse. The  distance between the top of the lighthouse and boat would be the hypotenuse. The  distance between the bottom of the lighthouse and the boat would be the base.

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