differential Equation
substitution suggested by equation
1. (3siny - 5x)dx + 2x^2cotydy = 0
2. (ke^2v - u)du = 2e^2v(e^2v + ku)dv = 0
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October 2015
03 Point P Inside an Isosceles Right Triangle
Problem
Point P is inside the isosceles right triangle ABC. AP is 15 cm, BP is 9 cm and CP is 12 cm as shown. Determine the area of the triangle ABC.
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Discussion on: Centroids and Centers of Gravity
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Equation of horizontal parabola passing through 3 points
find the equation of a parabola with axis parallel to x-axis and passing through (5,4), (11,-2), (21,-4).
Discussion on: 49-51 Ship sailing east and turned N 30d E
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Discussion on: 004 Components of a 3D force with given angles
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solid mensuration
1.)The chord of a circle is 1.25m long and is located at a distance of 0.65m from the center of the circle. Find the area?
2.)A spherical tank has a capacity of 2700 cubic cm is partially filled with water.
What is the area of the circle formed by the water surface if it is 72 cm from the center of the sphere?
(please try to solve this so i can compare mine,tnx.)
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zone of a sphere
HOW TO:
derive the formula of a ZONE of a SPHERE???
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At what angle with the direction of motion of the ship must the gun be pointed in order to hit the target?
paano po sagutan to?
A ship is traveling at a speed of 20 knots. (A knot is a nautical mile per hour, a nautical mile being approximately 1.1516 statute mile of 5280 feet each.) When directly opposite a target it fires a gun whose projectile has a velocity of 2000 feet a second. At what angle with the direction of motion of the ship must the gun be pointed in order to hit the target?
Discussion on: Area for grazing by the goat tied to a silo
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