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3^n - 3^{n - 1} - 3^{n - 2} is equal to:
3^n - 3^{n - 1} - 3^{n - 2} is equal to:
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More Old MCQ
Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.
Solve for x: $5^{2x + 1} \times 7^{2x} = 175$.
A construction company wants to number new houses using digit plates only. If the company puts an order for 1212 plates how many houses are to be given numbers? (The numbers of houses are consecutive and the number of the first house is 1).
Find the maximum and minimum values of $$ 3^{\sin x} for 0^\circ \le x \le 360ˆ\circ $$
Determine the amplitude of $y = 4 \cos 2x$.
A cube is 6 inches in edge. A cutting plane is passed through the midpoint of three adjacent edges. Find the volume of the smaller solid.
In a system of parallel pipes, which of the following is true:
m7NbLvW-1 Find the mid-chord elevation.
Find the volume of the tetrahedron bounded by the coordinate planes and the plane $8x + 12y + 4z - 48 = 0$.
A spider eats three flies a day. Until he fills his quota, he has an even chance of catching any fly that attempts to pass.
A principle in flow measurement which states that the increase in kinetic energy per unit weight is equal to the decrease in the potential energy per unit weight is known as:
The drainage from a community during a storm is a normal random variable estimated to have a mean of 1.2 million gallons per day (mgd) and a standard deviation of 0.4 mgd.
Find the 8th term of the sequence $-3, ~ 4, ~ 5/3, ~ … \, , ~ \dfrac{n + 2}{2n - 3}$.
A and B run a 1.5-kilometer race. In the first heat, A gives B a start of 11 meters and beats him by 57 seconds. In the second heat, A gives B a start of 81 seconds and is beaten by 88 meters. Find the rate of A in km/hr.
An airline does a survey of the weights of adult passengers traveling on its flights. It finds that 5% weigh more than 84.3 kg and 2% weigh less than 57.2 kg.
At a point A that is 50 m from the base of a monument, the angle of elevation to the top of the monument is twice as large as the angle of elevation from a point B that is 150 m from the monument.
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