Oil is leaking from a pipeline on the surface of a lake and forms an oil slick whose volume increases a
constant rate of 2000 cubic centimeters per minute. The oil slick takes the form of a right circular cylinder with both its radius and height changing with time.
(a) At the instant when the radius of the oil slick is 100 centimeters and the height is 0.5 centimeter the
radius is increasing at the rate of 2.5 centimeters per minute. At this instant, what is the rate of change
of the height of the oil slick with respect to time, in centimeters per minute?

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.