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labwork [276]
2 years ago
6

B) If fencing costs $2.50/yd, determine the costs of building the fence.

Mathematics
1 answer:
siniylev [52]2 years ago
8 0
You didn’t give the rest of the answer hun
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Leviafan [203]

Answer:

a = \frac{1}{\sqrt{2} } and b = \frac{\sqrt{2} }{2}

Step-by-step explanation:

As we know, the radius of the unit circle is 1 unit (it is the hypotenuse in the right triangle, the blue line)

We use trigonometric formulas to find out a and b

  • Sin(45) = opposite side / hypotenuse

<=> Sin(45) = b / 1

<=> b= Sin(45)*1 = \frac{\sqrt{2} }{2}

  • Cos(45) = adjacent side / hypotenuse

<=> Cos(45) = a / 1

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3 years ago
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Dennis_Churaev [7]

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Answer:

Step-by-step explanation:

6f^2 - 9f + 10 + 2f^2 + f - 3

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