From the top of a cliff 20m high, a boat can be sighted at sea 75m from the foot of the cliff. Calculate the angle of depression of the boat from the top of...

The side of a rhombus is 10cm long, correct to the nearest whole number. Between what limits should the perimeter P lie?

From a set \(A = [3, \sqrt{2}, 2\sqrt{3}, \sqrt{9}, \sqrt{7}]\), a number is selected at random. Find the probability that is a rational number

If \(K\sqrt{28}+\sqrt{63}-\sqrt{7}=0\), find K.

The interior angle of a regular polygon is twice the exterior angle. How many sides has the polygon?

The pie chart illustrate the amount of private time a student spends in a week studying various subjects. use it to answer the question below Find the value ...

A group of 11 people can speak either English or French or Both. Seven can speak English and six can speak French. What is the probability that a person chos...

Simplify log\(_7\) 8 - log\(_7\) 2 + log\(_7\) 4.

The pie chart illustrate the amount of private time a student spends in a week studying various subjects. use it to answer the question below If he sends \(2...