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Sergeeva-Olga [200]
3 years ago
13

A train leaves LA at 2:00 pm and heads north at 50 mph. If the next train leaves the station three hours later and heads north a

t 60 mph, at what time will the second train catch up to the first train?
Mathematics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

brainly.com/question/6423861

Step-by-step explanation:

Use link and give me 5 stars and brainliest

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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

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2 years ago
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For Letter C You Need to Count The Squares in the Pond And the Half Squares are a Half. The Answer for C is 33 Because The Half and the Other Half is a Whole So I Made 3 New Wholes and Added it to the 30.
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Help me pleaseeee already due!!
max2010maxim [7]

Answer :

I GOT CHU !!!!: )

Step-by-step explanation:

1. One way they are similar is that both of them have the same angles due to the process of dialation one is smaller than the other another way i can tell the two shapes are similar is that they are both on the x and y axis and that they've both been dialated one unit.

sorry i have to go but i gave you number one

HOPE THIS HELPS YOUUU !!!!!

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