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5. ### Airplane For Sale - We Have Answers

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Presumably "from a direction of 53.0 degrees" means the wind is blowing approximately towards the SW or WSW. So add the airspeed, -192 j, to the wind speed, which is 13.0 (i cos(233) + j sin(233)) = -7.8236 i - 10.3823 j. The resultant speed...

2 Answers · Science & Mathematics · 22/04/2018

2. ### Trig problems need help?

... are the bottom and top of the tower respectively. and A is the airplane. In ΔABT : ∠BAT = 14° - 8° = 6° ∠ATB = 90...

2 Answers · Science & Mathematics · 15/03/2018

3. ### Pre-calculus problem help please?

300° is equivalent to -60° on the unit circle. The x-component of velocity will be 120cos(-60°) and the y-component of velocity will be 120sin(-60°). The component form is then: (v_x, v_y) = (60, -60sqrt(3)) Since cos(-60°) = cos(60°) = 1/2 And sin(-60°) = -sin(60°) = -sqrt(3)/2

2 Answers · Science & Mathematics · 02/03/2018

4. ### What is the measure of one interior angle of a regular polygon with 4n + 2 number of sides?

... no aliens. Nobody lives on other planets. Airplanes that go down are hit by demons because they need the airspace to fight...

3 Answers · Science & Mathematics · 03/03/2018

5. ### Compare (x3 + 2x2 – 6x + 5) – (2x3 + 4x2 – 5x + 10)?

... no aliens. Nobody lives on other planets. Airplanes that go down are hit by demons because they need the airspace to fight...

5 Answers · Science & Mathematics · 03/03/2018

6. ### An airplane can cruise at 255mi/hr in still air. If a steady wind of 46mi/hr is blowing from West, what compass heading should?

Draw the triangle of vectors. The hypotenuse is 225 mph, the opposite side is 46 mph, so the angle of interest is .. arcsin(46/225) ≈ 11.8° The pilot needs to use a heading 11.8° west of north, or 348.2°.

1 Answers · Science & Mathematics · 01/12/2017

7. ### Related Rate Problem?

y = 3 miles x = sqrt(8^2 - 3^2) = sqrt(64 - 9) = sqrt(55) miles dy/dt = 0 dx/dt = 450 miles per hour dd/dt = ? d = 8 d^2 = x^2 + y^2 2d * dd/dt = 2x * dx/dt + 2y * dy/dt 2 * 8 * dd/dt = 2 * sqrt(55) * 450 + 2 * 3 * 0 8 * dd/dt = sqrt(55) * 450 4 * dd/dt = 225 * sqrt(55) dd/dt = 225 * sqrt(55) / 4 That's in miles...

2 Answers · Science & Mathematics · 17/11/2017

8. ### An air traffic controller... calculus problem?

Please show your working so far. Did you use the Pythagoras Theorem? s = distance between the aeroplanes t = time in hours s^2 = (100-400t)^2+(290-1160t)^2 s^2 = 1505600t^2 - 752800t + 94100 2s ds/dt = 3,011,200t-752,800 ds/dt = [1,505,6006t-376...

1 Answers · Science & Mathematics · 12/11/2017

9. ### I have a math question?

If they sell 10 million policies, they will get incomd of 10 million dollars. They will pay out 30*100000 = \$3 million. so their profit is 7 million. \$7 M / 10M policies = \$0.70 per policy

2 Answers · Science & Mathematics · 03/11/2017

10. ### Mean Value Theorem help?

Think of the graph of the plane's altitude at various times. It's a continuous graph. The Mean Value Theorem says that if the height was 29,710 feet at 9 am and was 18,536 feet at 3 pm, then for any specific...

1 Answers · Science & Mathematics · 14/11/2017