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.

Solve for y if y = log_100 10.
Chords AB and AC are drawn on a circle of radius 10 inches. Find the angle between the chords if the arc BAC is 28 inches long.
Find the maximum and minimum values of $$ 3^{\sin x} for 0^\circ \le x \le 360ˆ\circ $$
vSk9ZBx-3 Find the equation of the given line in the uv-plane.
A combination lock has 60 different positions. To open the lock, the dial is turned to a certain number in the clockwise direction, then to a number in the counterclockwise direction, and finally to a third number in the clockwise direction.
The pressure P of wind on a sail varies jointly as the area A of the sail and the square of the velocity V of the wind.
Three adjacent faces of a rectangular parallelepiped measures 8 square inches, ...
Solve for x if 2 log25 x - log25 (25 - 4x) = 1/2.
A vertical summit curve has tangent grades of +2.6% and -1.5%. Using h1 = 1.37 m and h2 = 0.1 m, calculate the minimum length of curve if the required sight distance is 140 m.
A man arrives at the railroad station nearest his country home an hour and 5 minutes before the time at which he had ordered his driver to meet him with his car.
A hot air balloon rising straight up from a level field is track by a range finder 500 ft from the point of lift off.
Evaluate the $\tan (\arctan 3 + \arctan 4)$.
Three numbers whose sum is 42 are in GP. If 1 is subtracted from the first, 3 from three from the second, and 11 from the third, the remainders will be in AP. Find the smallest number.
Without the use of calculator, solve for y if $\ln y = \frac{1}{2}\ln 4 + \frac{2}{3} \ln 8$.
Solve for x if $\sqrt[3]{x^2} + \sqrt[3]{x} - 20 = 0$.