Ahot air balloon descends to the ground. the function a(t) = 210 – 15t can be used to describe the altitude of the balloon as it approaches the ground. the time is in minutes. what does t represent? altitude of the balloontime after the balloon begins to descendtime it takes the balloon to reach the ground what does a(t) represent? altitude of the balloontime after the balloon begins to descendtime it takes the balloon to reach the ground what information will a(5.5) give? time it takes the balloon to reach an altitude of 5.5 feetaltitude of the balloon after 5.5 minutestime it will take the balloon to reach the ground, or 5.5 minutes

drop down 1: time it takes the balloon to reach the ground

drop down 2: Altitude of balloon

drop down 3: Altitude of balloon after 5.5 minutes

step-by-step explanation:

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.