Ifound this question in the sample assessment material of the igcse further pure maths.

the volume of a right circular cone is increasing at the rate of 45 cm3 s–1. the height of the cone is always three times the radius of the base of the cone. find the rate of increase of the radius of the base, in cms–1, when the radius of the cone is 4 cm. give your answer correct to 3 significant figures.

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?