The volume of a cube is increasing at a rate of 9 cubic centimetres per second. How fast is the surface area increasing when the length of an edge is 10 centimetres ?

The volume of a cube is increasing at the rate of 8 cm^(3) /s. How fast is the surface area increasing when the length of an edge is 12 cm?

An edge of a variable cube is increasing at the rate of 3 cm/s. How fast is the volume of the cube increasing when the edge is 10 cm long?

The radius of a spherical balloon is decreasing at the rate of 10 cm per second. At what rate is the surface area of the balloon decreasing when its radius is 15 cm?

The two equal sides of an isosceles triangle with fixed base b are decreasing at the rate of 3 cm per second. How fast is the area decreasing when the two equal sides are equal to the base ?

The radius of a circle is increasing uniformly at the rate of 3 cm/s. Find the rate at which the area of the circle is increasing when the radius is 10 cm.

The radius of an air bubble is increasing at the rate of (1)/(2) cm/s. At what rate is the volume of the bubble increasing when the radius is 1 cm?

A shperical balloon is being inflated so that its volume increases uniformly at the of 40 cm^(3) / min. How fast is its surface area increasing, when the radius is 8 cm? Find approximately how much the radius is 8 cm ? Find approximately how much the radius will increase during the next (1)/(2) minute.

A sphereical balloon is being fiiled with air at the rate of 25 cm^(3) /s. How fast is the radius increasing when the balloon is 20 cm in diameter?

The length of each side of an equilateral triangle increases at the rate of 2cm/sec. Find the rate of increase of the area of the triangle, when the length of each sides is 10cm.

The radius of a circle is increasing at a rate of 2.5 cm/sec. Find the rate of increase of the area of the circle when its radius is 5cm.