# Need help in simple mathematics

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• Mga sir, tanong ko lang po if ano yung solution sa mga problem na itatanong ko. May mga answer na kasi pero di ko alam paano nag-arrive sa sagot na yun. Thanks po.

1. From a boat, the angle of elevation of the foot of a light house on the edge of a cliff is 34 degrees, If the cliff is 150m high, how far from the base of the cliff is the boat?

Solution: ?

2. Horizontal line point B to point C is 12cm in length. Vertical line point C to point G is 5cm in length. Calculate length BG.

Solution: ?

3. An airplane has an airspeed of 275 km/h, and flies on a bearing of 295. The wind is blowing at a speed of 225 km/h from West to East. What is the head wind and what is the crosswind?

Solution: ?

Answer is head wind = 204 km/h and cross wind = 95 km/h

Many thanks po sa makakatulong! If may alam po kayong mga sites pa na may sample questions na ganito with solutions, hihingin ko lang po sana yung link. Thanks po.
• trigo question lang yan.

1. tan 34 = 150/x

2. phytagorean = a2 + b2 = c2
12^2 + 5^2 = c^2

3. di ko lam

-- edited by arthurjr07 on Oct 22 2014, 12:43 PM
• ^ thanks sir arthur!
• 3. The air speed of the airplane is not important. With a bearing of 295 degrees, the plane is flying approximately west-northwest 65 degrees from the north heading.

The component of the wind the plane is flying against (the headwind) is

HW = 225 x sin(65º) = 225 x 0.9063 = 203.9 km/hr

The component of the wind blowing across the plane (crosswind) is

CW = 225 x cos (65º) = 225 x 0.4226 = 95.1 km/hr
• ^ sir motion, thanks a lot! yan na lang yung problema ko. Thanks for solving!
• Anyone can help:

Solve for the equation of a line
1) passing through points P1(7, 3) , P2(2, -6).
2) slope is -1/3 , passing through P1(2, 3).
3) slope is -4, x intercept is -3/4.
4) slope is 2/3, y intercept is 4.

Find the equation of a line.
a) parallel y = 3x + 4, passing through P1(-2, 5)
b)parallel to a line passing P1(0, -3) and P2(-6, 4) and passing through P3(-1, 4).
c) perpendicular to the line y = x + 4 and passing through (-2, -6).
d) perpendicular to the line passing through point P1(3, 2) , P2(4, -6), and passing through P3(-6, 4).
 Forum Main Hardware/Devices Programming/R & D Software/Games Modding/Overclocking Networking/Web Mobile Computing Digital Media & Artwork Tech Help/Troubleshooting The Lounge 1