When a parabola represented by the equation y – 2x² = 8x + 5 is translated 3 units to the left and 2 units up, the new parabola has its vertex at?
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A bird is on top of a 10 m high electric post. John is observing the bird at an angle of elevation of 42.5°. How far is John from the foot of the electric post?
A person 100 meters from the base of a tree, observes that the angle between the ground and the top of the tree is 18 degrees. Estimate the height h of the tree to the nearest tenth of a meter.
What is the angle of elevation of a 25m high telecommunication tower if an observer is 10m away from its base?
A hollow sphere has an unknown charges distributed uniformly over its surface. At a distance of 0.300 m from the center of the sphere, the electric field points radially inward and has a magnitude of 1.78×102Â N/C. How much charge is ...
The total mass of a rod 5 meters long is 33 kg. If the linear density varies directly as the cube of the distance of the point from one end, find the linear density at the midpoint of the rod.
What is trigonometry
If , find