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Romashka [77]
4 years ago
13

A helicopter flies 665 feet above the ground

Mathematics
2 answers:
maksim [4K]4 years ago
8 0

Answer:

67 degrees

Step-by-step explanation:

german4 years ago
5 0

Answer:

67

Step-by-step explanation:

A helicopter flies 665 feet above ground. What is the measure of the angle of depression from the helicopter to the girl’s line of sight? Round to the nearest degree.  

23°

25°

65°

67°

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Performing laplace transform of the equation.

sY(s) - y(0) + 6Y(s) = 1/(s-4)
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Y(s) = 2/(s+6) + 1/(s-4)(s+6), by partial fraction decomposition
Y(s) = 2/(s+6) + 1/10 * (1/(s-4) + 1/(s+6))
Y(s) = 0.1/(s-4) + 2.1/(s+6)

Performing inverse laplace transform,
y(t) = 0.1e^4t + 2.1e^(-6t)


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