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ad-work [718]
2 years ago
10

Can someone help me with this please!!! (Picture) I will mark brainliest no links!

Mathematics
1 answer:
DochEvi [55]2 years ago
4 0
Answer: True! Yes, sine and cosine are called co-functions, where the sign function of any acute angle equals it’s co-function of the angles complement.
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A 31​-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first​ piece, and the third
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Answer:

The length of the first piece is 4 inches, that of the second is 8 inches and the third 19 inches.

Step-by-step explanation:

Total length of the steel = 31 inches

Let the length of the first piece = x

let the length of the second piece = y

Let the length of the third piece = z

So,    

  y = 2x

  z = 4x + 3

x + 2x + 4x +3  = total length of the steel = 31

   7x + 3 + 31

    7x = 31 - 3

    7x = 28

    x= 4 inches

Thus; y = 2x = 2 × 4 = 8 inches

         z = 4x +3 = 4×4 +3 =19 inches

∴The length of the first piece is 4 inches, that of the second is 8 inches and the third 19 inches.

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3 years ago
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Find the product (4x-3y)(2x+5)
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Step-by-step explanation:

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