From the top of a platform 7 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 50√3 m away from the tower, how tall was the tower?
A manufacturer faces price elasticity of demand of a 1.25 for its product. If it lowers its price by 6.4%, the increase in quantity sold will be _____.
In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select No Error.
Many firms fail because when they begin (1)/ exporting, they have not research the (2)/ target markets or have not planned enough. (3)/ No error (4)
The pie chart shows the distribution of wealth between 7 children according to their father's will. Study the diagram and answer the following questions.
The measure of the central angle of the sector representing the share of wealth that D gets is ________ degrees.