Multiple Choice Question: Let $a$, $b$ be the lengths of the two legs of a right triangle, and $c$ be the length of its hypotenuse. What is the length of the altitude to the hypotenuse?

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Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

Simplify and solve for y: $y = \ln \left( \dfrac{e^x}{e^{x - 1}} \right)$.
Line AB has point A(4, 5) and point B(-3, -2). Find point C along line AB if distance BC is three times the distance AC.
In the CE Board examinations, the probability that an examinee will pass in each subject is 0.80. What is the probability that the examinee will pass at least two subjects.
In how many days will the original gang of pipe layers, under the supervision of foreman B, finish the original pipe-laying job?
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The triangle defined by the points A(6, 1), B(2, 4), C(-2, 1) is…
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If the interest rate on an account is 8.5% compounded yearly, approximately how many years will it take to triple the amount?
Selena invested a certain amount of money at a rate of 12% compounded bi-monthly. How do we calculate the effective rate of Selena's investment?
Solve for x from $\sqrt{x - 7} - \sqrt{x} = 1$.
Find the distance between foci of the conic 8x^2 + 9y^2 = 288.
If 1200 cm^2 of material is available to make a box with a square base and open top, find the largest possible volume of the box.
Water that flows from the atmosphere to the earth’s surface in any variety of forms is known as: