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Pedro R.
SAT prep, Math, Physics, Finance, Mechanical Engineering, Python and MATLAB tutor
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Trigonometry
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Question:

A person at 200 meters from the base of a tree, observes that the angle between the ground and the top of the tree is 30 degrees. Estimate the height h of the tree:

Pedro R.

Solution: tan(30º) = h / 200 So, h = 200 m * tan(30ª) = 114 meters.

Basic Math
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Question:

Jhony Pizza's has reduced prices by 20% on everything. If a Margarita Pizza cost \$5 before the price reduction, How much does it cost now?

Pedro R.

Let's calculate the final porcentage that applies to the price. Final porcentage = 100% - reduction (20%) = 100% - 20% = 80% So, the final Pizza price will be: 5\$ * 80% = 4\$

Physics
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Question:

Do heavier objects fall more slowly than lighter objects?

Pedro R.

No, all objects fall with the same acceleration regardless of their weight.

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