Multiple Choice Question: It is a point formed by intersecting the three altitudes of a triangle.

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

A student received grades of 72, 75, and 78 on three tests. What must her score in the next test be for her to have an average grade of 80 for all four tests?
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.
The price of an article is cut by 10%. To restore it to its former value the new price must be increased by:
A commuter drives from Mandaue to Bogo 120 km away at an average speed of 60 kph and returned to Mandaue at an average speed of 40 kph. What was the average speed of the commuter for the whole journey?
Solve for x if 2 log25 x - log25 (25 - 4x) = 1/2.
Albert and Bryan can do a certain task if both work together 3 days and Albert then works alone 1 day.
A pole cast a shadow 15 m long when the angle of elevation of the sun is 61°. If the pole has lean 15° from the vertical directly towards the sun, what is the length of the pole?
It is a point formed by intersecting the three altitudes of a triangle.
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
Solve for x: log_3 67 = 2x.
A 3-degree simple curve has an external distance of 23 m. What is the length of the long chord?
Three forces 20 N, 30 N, and 40 N are in equilibrium. Find the angle between the 20 N and 40 N forces.
Find the volume generated by revolving the area on the 1st and 4th quadrants by the ellipse y^2 / 9 + x^2 / 4 = 1 about the line x = 3.
In a class experiment, a student needs 5 liters of 6% solution. He found a 4% and a 10% solution in the laboratory. How many liters of each solution should he mix in order to obtain 5 liters of 6% solution?
When x^2 + 5x - 2 is divided by x + n, the remainder is -8. Find all possible values of n.