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julia-pushkina [17]
3 years ago
11

Can someone please help

Mathematics
1 answer:
dimaraw [331]3 years ago
3 0

Answer:

Angle of elevation of the airplane = 17.46 degrees

Step-by-step explanation:

From the picture attached,

An airplane is flying at an altitude of 1500 ft at point A.

Runway starts from point B from which distance of the airplane is 5000 ft.

Now we apply sine rule in the given triangle ABC to measure the angle θ.

sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

sinθ = \frac{AC}{AB}

       = \frac{1500}{5000}

\theta=\text{sin}^{-1}(\frac{3}{10})

\theta=17.46 degrees

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3 years ago
What is the value of x in the equation 1/5 x-2/3y = 30, when y = 15?
Svetllana [295]

Answer:

The value of x is 200 in the equation 1/5x - 2/3y = 30, when y = 15

Step-by-step explanation:

<u>Given</u>

equation: x - 2/3y = 30

when y = 15

<em>Plug in y:</em>

1/5x - 2/3(15) = 30

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<em>add</em> 10 to both sides,

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7 0
2 years ago
Read 2 more answers
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