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Mashutka [201]
3 years ago
13

PLEASE ANSWER MARKING BRAINLIEST is 2/x + 3/y = 6 proportional??

Mathematics
1 answer:
-Dominant- [34]3 years ago
6 0
It is because you will get dy/dx=-2y2/3x2
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PLEASE HELP! 50 Points!
gulaghasi [49]

The bearing of the plane is approximately 178.037°. \blacksquare

<h3>Procedure - Determination of the bearing of the plane</h3><h3 />

Let suppose that <em>bearing</em> angles are in the following <em>standard</em> position, whose vector formula is:

\vec r = r\cdot (\sin \theta, \cos \theta) (1)

Where:

  • r - Magnitude of the vector, in miles per hour.
  • \theta - Direction of the vector, in degrees.

That is, the line of reference is the +y semiaxis.

The <em>resulting</em> vector (\vec v), in miles per hour, is the sum of airspeed of the airplane (\vec v_{A}), in miles per hour, and the speed of the wind (\vec v_{W}), in miles per hour, that is:

\vec v = \vec v_{A} + \vec v_{W} (2)

If we know that v_{A} = 239\,\frac{mi}{h}, \theta_{A} = 180^{\circ}, v_{W} = 10\,\frac{m}{s} and \theta_{W} = 53^{\circ}, then the resulting vector is:

\vec v = 239 \cdot (\sin 180^{\circ}, \cos 180^{\circ}) + 10\cdot (\sin 53^{\circ}, \cos 53^{\circ})

\vec v = (7.986, -232.981) \,\left[\frac{mi}{h} \right]

Now we determine the bearing of the plane (\theta), in degrees, by the following <em>trigonometric</em> expression:

\theta = \tan^{-1}\left(\frac{v_{x}}{v_{y}} \right) (3)

\theta = \tan^{-1}\left(-\frac{7.986}{232.981} \right)

\theta \approx 178.037^{\circ}

The bearing of the plane is approximately 178.037°. \blacksquare

To learn more on bearing, we kindly invite to check this verified question: brainly.com/question/10649078

5 0
3 years ago
PLEASE HELP ME PLEASE PLEASE PLEASE
aev [14]

Answer:

Step-by-step explanation:

l/100 km   means   liters per 100 Kilometre. How many liters a car need for traveling 100 km.

Km/l  means  liter per km

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3 years ago
Where are the X intercept and Y intercept of the graph of y=1/3x-6
goldfiish [28.3K]

Answer:

x-int= (18,0), y-int= (0,-6)

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3 years ago
A recipe for 9 banana dash nut muffins calls for 1 cup of flour. The number of muffins that can be made varies directly with the
alexgriva [62]

Answer:

12 muffins can be made.

Step-by-step explanation:

12 muffins because if one cup makes 9 muffins, and 1/3 of 9 is 3. Than 9+3=12 so you can make 12.

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3 years ago
4x^2-9 (Using Grouping Method please)​
elena55 [62]

Answer:

16x square -9

Step-by-step explanation:

4x^2-9=

4x*4x-9

16x square -9

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4 years ago
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